首页 > 最新文献

Advanced Photonics Research最新文献

英文 中文
Efficient Pulsed Raman Laser with Wavelength above 2.1 μm Pumped by Noise-Like Pulse 用类噪声脉冲泵浦波长超过 2.1 μm 的高效脉冲拉曼激光器
IF 3.7 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-03-07 DOI: 10.1002/adpr.202300342
Meng Wang, Deqin Ouyang, Yu Lin, Yewang Chen, Minqiu Liu, Junqing Zhao, Xing Liu, Shuangchen Ruan

Herein, the efficiently high-power pulsed Raman lasers with wavelength above 2.1 μm are experimentally demonstrated relying on the stimulated Raman scattering. A tailored high-power noise-like pulse (NLP) fiber laser system centered at ≈1953 nm with a maximum output power of ≈10.9 W is served as the pump source. By directly pumping a section of highly Ge-doped silica fiber, the first pulsed Raman laser (centered at≈2139 nm) and the second pulsed Raman laser (centered at ≈2353 nm) with maximum output powers of ≈3.8 and ≈0.25 W are obtained, respectively, which represent the highest output powers of NLP at these wavelength regions, to the best of knowledge. Moreover, a high spectral purity of ≈94.3% of the first Raman laser is obtained, which indicates the significantly potential application of NLP in pulsed Raman laser. The midinfrared NLP fiber laser source will have potential applications in transparent polymer materials processing and midinfrared spectroscopy.

本文利用受激拉曼散射,实验证明了波长在 2.1 μm 以上的高效大功率脉冲拉曼激光器。量身定制的高功率类噪声脉冲(NLP)光纤激光器系统的中心波长≈1953 nm,最大输出功率≈10.9 W。通过直接泵浦一段高掺锗硅光纤,获得了第一脉冲拉曼激光器(中心波长≈2139 nm)和第二脉冲拉曼激光器(中心波长≈2353 nm),其最大输出功率分别为≈3.8 W 和≈0.25 W,这代表了目前所知的 NLP 在这些波长区域的最高输出功率。此外,第一台拉曼激光器还获得了≈94.3%的高光谱纯度,这表明 NLP 在脉冲拉曼激光器中的应用潜力巨大。中红外 NLP 光纤激光源将在透明聚合物材料加工和中红外光谱分析中得到潜在应用。
{"title":"Efficient Pulsed Raman Laser with Wavelength above 2.1 μm Pumped by Noise-Like Pulse","authors":"Meng Wang,&nbsp;Deqin Ouyang,&nbsp;Yu Lin,&nbsp;Yewang Chen,&nbsp;Minqiu Liu,&nbsp;Junqing Zhao,&nbsp;Xing Liu,&nbsp;Shuangchen Ruan","doi":"10.1002/adpr.202300342","DOIUrl":"10.1002/adpr.202300342","url":null,"abstract":"<p>Herein, the efficiently high-power pulsed Raman lasers with wavelength above 2.1 μm are experimentally demonstrated relying on the stimulated Raman scattering. A tailored high-power noise-like pulse (NLP) fiber laser system centered at ≈1953 nm with a maximum output power of ≈10.9 W is served as the pump source. By directly pumping a section of highly Ge-doped silica fiber, the first pulsed Raman laser (centered at≈2139 nm) and the second pulsed Raman laser (centered at ≈2353 nm) with maximum output powers of ≈3.8 and ≈0.25 W are obtained, respectively, which represent the highest output powers of NLP at these wavelength regions, to the best of knowledge. Moreover, a high spectral purity of ≈94.3% of the first Raman laser is obtained, which indicates the significantly potential application of NLP in pulsed Raman laser. The midinfrared NLP fiber laser source will have potential applications in transparent polymer materials processing and midinfrared spectroscopy.</p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 9","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300342","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140260338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
2D Exotic Optical Lattice via a Digital-Coding Circular Airy Beam 通过数字编码圆形空气光束实现二维奇异光晶格
IF 3.7 Pub Date : 2024-03-06 DOI: 10.1002/adpr.202470007
Peisheng Sun, Lai Chen, Bailiang Pan, Linhua Ye, Chengfeng Wang, Junxiang Zhang, Li-Gang Wang

Optical lattices have been widely used from classic to quantum physics. The tunable and scalable fabrication of lattices would be of great significance in lattice-based multipartite applications. In article number 2300280, Junxiang Zhang, Li-Gang Wang, and co-workers propose and demonstrate the fabrication of a 2D exotic optical lattice via spatial crosstalk between a single structured circular Airy beam and a digital spatial mask. This flexible method can steer optical lattices with axis, axial symmetry, and even high orbital kaleidoscope structures, with potential applications in integrated and scalable optical and photonic devices.

从经典物理学到量子物理学,光学晶格都得到了广泛应用。可调谐、可扩展的晶格制造对于基于晶格的多面体应用具有重要意义。在文章编号 2300280 中,张俊祥、王立刚及其合作者提出并演示了通过单个结构化圆形艾里光束与数字空间掩模之间的空间串扰来制造二维奇异光晶格的方法。这种灵活的方法可以引导具有轴向、轴对称甚至高轨道万花筒结构的光学晶格,有望应用于集成和可扩展的光学和光子设备。
{"title":"2D Exotic Optical Lattice via a Digital-Coding Circular Airy Beam","authors":"Peisheng Sun,&nbsp;Lai Chen,&nbsp;Bailiang Pan,&nbsp;Linhua Ye,&nbsp;Chengfeng Wang,&nbsp;Junxiang Zhang,&nbsp;Li-Gang Wang","doi":"10.1002/adpr.202470007","DOIUrl":"https://doi.org/10.1002/adpr.202470007","url":null,"abstract":"<p>Optical lattices have been widely used from classic to quantum physics. The tunable and scalable fabrication of lattices would be of great significance in lattice-based multipartite applications. In article number 2300280, Junxiang Zhang, Li-Gang Wang, and co-workers propose and demonstrate the fabrication of a 2D exotic optical lattice via spatial crosstalk between a single structured circular Airy beam and a digital spatial mask. This flexible method can steer optical lattices with axis, axial symmetry, and even high orbital kaleidoscope structures, with potential applications in integrated and scalable optical and photonic devices.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202470007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140043096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Planar Compound Eye Lens for Enhanced Light Extraction Efficiency in AlGaN-Based Deep Ultraviolet LEDs 平面复眼透镜用于提高氮化铝基深紫色 LED 的光提取效率
IF 3.7 Pub Date : 2024-03-06 DOI: 10.1002/adpr.202470008
Qilong Tan, Jie Zhao, Qixin Li, Huan Liu, Bin Dong, Chenguang He, Zhitao Chen, Wen Zhou, Ningyang Liu

Total internal reflection prevents photons from escaping deep-ultraviolet LED, resulting in serious energy waste and reduced service life. In article number 2300309, Wen Zhou, Ningyang Liu, and co-workers present a method to significantly enhance the light extraction efficiency of LED by reconfiguring the planar compound eye lens utilizing bio-inspired highly optimized features acquired from the praying mantis.

全内反射会阻止光子从深紫外 LED 中逃逸,造成严重的能源浪费和使用寿命缩短。在编号为 2300309 的文章中,周文、刘宁洋及其合作者提出了一种方法,利用从螳螂身上获得的生物启发高度优化特征,重新配置平面复眼透镜,从而显著提高 LED 的光提取效率。
{"title":"Planar Compound Eye Lens for Enhanced Light Extraction Efficiency in AlGaN-Based Deep Ultraviolet LEDs","authors":"Qilong Tan,&nbsp;Jie Zhao,&nbsp;Qixin Li,&nbsp;Huan Liu,&nbsp;Bin Dong,&nbsp;Chenguang He,&nbsp;Zhitao Chen,&nbsp;Wen Zhou,&nbsp;Ningyang Liu","doi":"10.1002/adpr.202470008","DOIUrl":"https://doi.org/10.1002/adpr.202470008","url":null,"abstract":"<p>Total internal reflection prevents photons from escaping deep-ultraviolet LED, resulting in serious energy waste and reduced service life. In article number 2300309, Wen Zhou, Ningyang Liu, and co-workers present a method to significantly enhance the light extraction efficiency of LED by reconfiguring the planar compound eye lens utilizing bio-inspired highly optimized features acquired from the praying mantis.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202470008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140043097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Laser-Induced Breakdown Spectroscopy Online Quantitative Analysis for Laser Processing 激光加工过程中的激光诱导击穿光谱在线定量分析
IF 3.7 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-02-29 DOI: 10.1002/adpr.202300293
Tianzhuo Zhao, Qixiu Zhong, Shuzhen Nie, XiaoLong Liu, Hong Xiao, Chenxuan Yin, Fanghui Zhong, Yachen Ke, Fei Li

Plasma fluctuations, the uncertainty of laser ablation, and bremsstrahlung limit the identification of online element analysis during laser processing and cause difficulty in achieving concentration results with sufficient accuracy and repeatability. A laser-induced breakdown spectroscopy (LIBS) online monitoring system with plasma spatial filtering and spectral screening is proposed to solve this problem. In this system, the high-frequency ablation noise component of the plasma is eliminated using a specially designed optical Fourier filtering structure, and a spectral screening system based on plasma time waveform monitoring is used to suppress the influence of plasma fluctuations. Without noise filters or algorithm optimizations and based only on the basic internal standard method, the calibration curves of all nine elements in the alloy sample exhibits a Pearson's R2 value ranged from 0.91 to 0.99, with a mean of 0.94. The relative standard deviations are all in the range of 3.5%–8.4% with a mean of 5.4%. The accuracy and repeatability are comparable to those of typical LIBS systems.

等离子体波动、激光烧蚀的不确定性和轫致辐射限制了激光加工过程中的在线元素分析识别,导致难以获得具有足够准确性和可重复性的浓缩结果。为解决这一问题,我们提出了一种具有等离子体空间滤波和光谱筛选功能的激光诱导击穿光谱在线监测系统(LIBS)。在该系统中,利用专门设计的光学傅里叶滤波结构消除了等离子体的高频烧蚀噪声成分,并使用基于等离子体时间波形监测的光谱筛选系统抑制等离子体波动的影响。在没有噪声滤波器或算法优化的情况下,仅根据基本的内标方法,合金样品中所有九种元素的校准曲线的皮尔逊 R2 值在 0.91 至 0.99 之间,平均值为 0.94。相对标准偏差均在 3.5%-8.4% 之间,平均值为 5.4%。准确度和重复性与典型的 LIBS 系统相当。
{"title":"Laser-Induced Breakdown Spectroscopy Online Quantitative Analysis for Laser Processing","authors":"Tianzhuo Zhao,&nbsp;Qixiu Zhong,&nbsp;Shuzhen Nie,&nbsp;XiaoLong Liu,&nbsp;Hong Xiao,&nbsp;Chenxuan Yin,&nbsp;Fanghui Zhong,&nbsp;Yachen Ke,&nbsp;Fei Li","doi":"10.1002/adpr.202300293","DOIUrl":"10.1002/adpr.202300293","url":null,"abstract":"<p>Plasma fluctuations, the uncertainty of laser ablation, and bremsstrahlung limit the identification of online element analysis during laser processing and cause difficulty in achieving concentration results with sufficient accuracy and repeatability. A laser-induced breakdown spectroscopy (LIBS) online monitoring system with plasma spatial filtering and spectral screening is proposed to solve this problem. In this system, the high-frequency ablation noise component of the plasma is eliminated using a specially designed optical Fourier filtering structure, and a spectral screening system based on plasma time waveform monitoring is used to suppress the influence of plasma fluctuations. Without noise filters or algorithm optimizations and based only on the basic internal standard method, the calibration curves of all nine elements in the alloy sample exhibits a Pearson's <i>R</i><sup>2</sup> value ranged from 0.91 to 0.99, with a mean of 0.94. The relative standard deviations are all in the range of 3.5%–8.4% with a mean of 5.4%. The accuracy and repeatability are comparable to those of typical LIBS systems.</p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 7","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300293","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140414356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Broadband Diffractive Neural Networks Enabling Classification of Visible Wavelengths 可对可见光波长进行分类的宽带衍射神经网络
IF 3.7 Pub Date : 2024-02-29 DOI: 10.1002/adpr.202300310
Ying Zhi Cheong, Litty Thekkekara, Madhu Bhaskaran, Blanca del Rosal, Sharath Sriram

Diffractive neural networks (DNNs) are emerging as a new machine learning hardware based on optical diffraction with parallel and high-throughput information processing. The optical inputs to DNNs are spatially modulated by propagating through passive diffractive layers that work in succession to achieve an inference. Herein, visible wavelength classification using single- and two-layer DNNs fabricated using direct laser writing is demonstrated. The proposed DNN approach accepts the point spread function of two different wavelengths modeled after a microscope objective as the input and modulates the input field toward the target detector for classification. Of the three models trained to classify different wavelength pairs, the highest performance observed is for the classification of 561 and 785 nm, achieving over 90% accuracy. This work demonstrates the potential of all-optical artificial neural networks for applications requiring visible wavelengths, from visible light beam shaping to spectral analysis and optical imaging.

衍射神经网络(DNN)是一种基于光学衍射的新型机器学习硬件,具有并行和高吞吐量信息处理功能。衍射神经网络的光输入通过无源衍射层进行空间调制,这些衍射层连续工作以实现推理。本文展示了利用激光直接写入技术制造的单层和双层 DNN 的可见光波长分类。所提出的 DNN 方法接受以显微镜物镜为模型的两种不同波长的点扩散函数作为输入,并将输入场调制到目标检测器以进行分类。在对不同波长对进行分类的三个训练模型中,561 和 785 nm 波长的分类性能最高,准确率超过 90%。这项工作展示了全光学人工神经网络在需要可见光波长的应用中的潜力,包括可见光光束整形、光谱分析和光学成像。
{"title":"Broadband Diffractive Neural Networks Enabling Classification of Visible Wavelengths","authors":"Ying Zhi Cheong,&nbsp;Litty Thekkekara,&nbsp;Madhu Bhaskaran,&nbsp;Blanca del Rosal,&nbsp;Sharath Sriram","doi":"10.1002/adpr.202300310","DOIUrl":"10.1002/adpr.202300310","url":null,"abstract":"<p>Diffractive neural networks (DNNs) are emerging as a new machine learning hardware based on optical diffraction with parallel and high-throughput information processing. The optical inputs to DNNs are spatially modulated by propagating through passive diffractive layers that work in succession to achieve an inference. Herein, visible wavelength classification using single- and two-layer DNNs fabricated using direct laser writing is demonstrated. The proposed DNN approach accepts the point spread function of two different wavelengths modeled after a microscope objective as the input and modulates the input field toward the target detector for classification. Of the three models trained to classify different wavelength pairs, the highest performance observed is for the classification of 561 and 785 nm, achieving over 90% accuracy. This work demonstrates the potential of all-optical artificial neural networks for applications requiring visible wavelengths, from visible light beam shaping to spectral analysis and optical imaging.</p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 6","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300310","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140415280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of Pulse Duration on the Properties of Laser Hyperdoped Black Silicon 脉冲持续时间对激光高掺杂黑硅特性的影响
IF 3.7 Pub Date : 2024-02-27 DOI: 10.1002/adpr.202300281
Patrick Mc Kearney, Sören Schäfer, Xiaolong Liu, Simon Paulus, Ingo Lebershausen, Behrad Radfar, Ville Vähänissi, Hele Savin, Stefan Kontermann

The impact of three different pulse durations (100 fs, 1, and 10 ps) on the formation of laser hyperdoped black silicon with respect to surface morphology, sub-bandgap absorptance, the sulfur concentration profile, and the effective minority carrier lifetime after Al2O3 surface passivation is investigated. The current flow behavior is compared through the hyperdoped layer by I–V measurements after hyperdoping with different pulse durations. For conditions that give the same absolute sub-bandgap absorptance, an increase in pulse duration from 100 fs to 10 ps results in a shallower sulfur concentration profile. Findings are explained by an increasing ablation threshold from 0.19 J cm−2 for a pulse duration of 100 fs to 0.21 J cm−2 for 1 ps and 0.34 J cm−2 for 10 ps. The formation of an equally absorbing layer with a shallower doping profile results in a reduction in contact and/or sheet resistance. Despite the higher local sulfur concentration, the samples show no decrease in carrier lifetime measured by quasi-steady-state photoconductance decay on Al2O3 surface-passivated samples. The investigation shows that longer pulses of up to 10 ps during laser hyperdoping of silicon result in advanced layer properties that promise to be beneficial in a potential device application.

研究了三种不同脉冲持续时间(100 fs、1 和 10 ps)对激光超掺杂黑硅形成的影响,包括表面形貌、亚带隙吸收率、硫浓度曲线以及 Al2O3 表面钝化后的有效少数载流子寿命。在不同脉冲持续时间的超掺杂后,通过 I-V 测量比较了通过超掺杂层的电流流动行为。在绝对亚带隙吸收率相同的条件下,脉冲持续时间从 100 fs 增加到 10 ps 会导致硫浓度曲线变浅。脉冲持续时间从 100 fs 时的 0.19 J cm-2 到 1 ps 时的 0.21 J cm-2 和 10 ps 时的 0.34 J cm-2 时,烧蚀阈值不断增加,从而解释了这一结果。形成具有较浅掺杂剖面的同等吸收层可降低接触电阻和/或薄层电阻。尽管局部硫浓度较高,但通过 Al2O3 表面钝化样品上的准稳态光电导衰减测量,样品的载流子寿命并没有缩短。这项研究表明,在硅的激光超掺杂过程中,长达 10 ps 的长脉冲可产生先进的层特性,有望在潜在的设备应用中大显身手。
{"title":"Impact of Pulse Duration on the Properties of Laser Hyperdoped Black Silicon","authors":"Patrick Mc Kearney,&nbsp;Sören Schäfer,&nbsp;Xiaolong Liu,&nbsp;Simon Paulus,&nbsp;Ingo Lebershausen,&nbsp;Behrad Radfar,&nbsp;Ville Vähänissi,&nbsp;Hele Savin,&nbsp;Stefan Kontermann","doi":"10.1002/adpr.202300281","DOIUrl":"https://doi.org/10.1002/adpr.202300281","url":null,"abstract":"<p>The impact of three different pulse durations (100 fs, 1, and 10 ps) on the formation of laser hyperdoped black silicon with respect to surface morphology, sub-bandgap absorptance, the sulfur concentration profile, and the effective minority carrier lifetime after Al<sub>2</sub>O<sub>3</sub> surface passivation is investigated. The current flow behavior is compared through the hyperdoped layer by <i>I–V</i> measurements after hyperdoping with different pulse durations. For conditions that give the same absolute sub-bandgap absorptance, an increase in pulse duration from 100 fs to 10 ps results in a shallower sulfur concentration profile. Findings are explained by an increasing ablation threshold from 0.19 J cm<sup>−2</sup> for a pulse duration of 100 fs to 0.21 J cm<sup>−2</sup> for 1 ps and 0.34 J cm<sup>−2</sup> for 10 ps. The formation of an equally absorbing layer with a shallower doping profile results in a reduction in contact and/or sheet resistance. Despite the higher local sulfur concentration, the samples show no decrease in carrier lifetime measured by quasi-steady-state photoconductance decay on Al<sub>2</sub>O<sub>3</sub> surface-passivated samples. The investigation shows that longer pulses of up to 10 ps during laser hyperdoping of silicon result in advanced layer properties that promise to be beneficial in a potential device application.</p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 6","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300281","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141315512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Counter-Propagating Evanescent Illumination Super-Resolution Chip 反向传播渐变照明超分辨率芯片
IF 3.7 Pub Date : 2024-02-25 DOI: 10.1002/adpr.202300341
Chenlei Pang, Xiaowei Liu, Qianwei Zhang, Zhi Wang, Xiaoyu Yang, Weidong Shen, Xu Liu, Qing Yang

Super-resolution chip (SRC) made of fluorescent polymer film and polygon film waveguide can realize subdiffraction imaging. However, the propagation losses of evanescent waves impose a serious restriction on imaging performance. Meanwhile, the required redundant raw images hinder the imaging speed. Multiple-azimuths evanescent illumination at the same time can efficiently increase the illumination intensity and uniformity, and reduce the number of required raw images. But, the experimental realization is impeded by the complex spatial frequency mixing problem. Herein, an SRC microscopy method with counter-propagating evanescent illumination is demonstrated, which circumvents the influence of complex spatial frequency mixing, and efficiently enhances the reconstructed results. Meanwhile, the proposed method reduces the number of required raw images by half and saves the image acquisition time, which benefits the imaging speed enhancement of the SRC microscopy system and promotes its future practical application.

由荧光聚合物薄膜和多边形薄膜波导制成的超分辨芯片(SRC)可实现亚衍射成像。然而,蒸发波的传播损耗严重限制了成像性能。同时,所需的冗余原始图像也阻碍了成像速度。同时使用多个渐变波进行蒸发照明可以有效提高照明强度和均匀性,并减少所需的原始图像数量。但是,复杂的空间混频问题阻碍了实验的实现。本文展示了一种具有反向传播的蒸发照明的 SRC 显微镜方法,它可以规避复杂空间频率混合的影响,并有效增强重建结果。同时,所提出的方法将所需的原始图像数量减少了一半,节省了图像采集时间,有利于提高 SRC 显微系统的成像速度,促进其未来的实际应用。
{"title":"Counter-Propagating Evanescent Illumination Super-Resolution Chip","authors":"Chenlei Pang,&nbsp;Xiaowei Liu,&nbsp;Qianwei Zhang,&nbsp;Zhi Wang,&nbsp;Xiaoyu Yang,&nbsp;Weidong Shen,&nbsp;Xu Liu,&nbsp;Qing Yang","doi":"10.1002/adpr.202300341","DOIUrl":"10.1002/adpr.202300341","url":null,"abstract":"<p>Super-resolution chip (SRC) made of fluorescent polymer film and polygon film waveguide can realize subdiffraction imaging. However, the propagation losses of evanescent waves impose a serious restriction on imaging performance. Meanwhile, the required redundant raw images hinder the imaging speed. Multiple-azimuths evanescent illumination at the same time can efficiently increase the illumination intensity and uniformity, and reduce the number of required raw images. But, the experimental realization is impeded by the complex spatial frequency mixing problem. Herein, an SRC microscopy method with counter-propagating evanescent illumination is demonstrated, which circumvents the influence of complex spatial frequency mixing, and efficiently enhances the reconstructed results. Meanwhile, the proposed method reduces the number of required raw images by half and saves the image acquisition time, which benefits the imaging speed enhancement of the SRC microscopy system and promotes its future practical application.</p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 6","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300341","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140432701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Solar Degradation and Stability of Lead-Free Light Absorber Cs2AgBiBr6 in Ambient Conditions 无铅光吸收剂 Cs2AgBiBr6 在环境条件下的日光降解和稳定性
IF 3.7 Pub Date : 2024-02-16 DOI: 10.1002/adpr.202300269
Dennis Michael Jöckel, Songhak Yoon, Alexander Frebel, Samuel Meles Neguse, Jürgen Dieter Rossa, Alexander Jürgen Bett, Martin Schubert, Marc Widenmeyer, Benjamin Balke–Grünewald, Anke Weidenkaff

As numerous studies on highly efficient perovskite solar cells have been conducted on lead-based light absorbers, such as MAPbI3 and FAPbI3, increasing concerns are rising regarding toxicity and stability issues. One of the most prominent and promising lead-free alternatives is the double-perovskite Cs2AgBiBr6, which is well-suited for multi-junction solar cells considering its relatively large indirect bandgap of around 1.95–2.05 eV. Despite distinctive reports on its performance under ambient conditions, the demonstrated stability has not yet been conclusively clarified. Within this study, the degradation behavior of Cs2AgBiBr6 single crystals is investigated under different ambient environments, such as AM1.5g solar irradiation, aquatic conditions, and humidity. The corresponding samples are analyzed by using Raman, UV–vis, energy-dispersive X-Ray, and micro-photoluminescence spectroscopies together with X-Ray diffraction. High intrinsic stability of Cs2AgBiBr6 in ambient conditions and severe degradation in aquatic conditions are observed. Furthermore, surface morphology alterations are found during the simulated solar irradiation indicating photo-accelerated degradation behavior. In the results of this study, it is clearly implied that intense research efforts need to be put into sealing the Cs2AgBiBr6 layer in solar cells with the goal of protecting it from humidity and water intrusion simultaneously, therefore avoiding photo-accelerated degradation.

由于对 MAPbI3 和 FAPbI3 等铅基光吸收剂进行了大量高效包晶体太阳能电池研究,人们越来越关注其毒性和稳定性问题。双过氧化物 Cs2AgBiBr6 是最突出、最有前途的无铅替代品之一,它的间接带隙相对较大,约为 1.95-2.05 eV,非常适合多结太阳能电池。尽管对其在环境条件下的性能有不同的报道,但其稳定性尚未得到最终证实。本研究调查了 Cs2AgBiBr6 单晶在 AM1.5g 太阳辐照、水生条件和湿度等不同环境条件下的降解行为。利用拉曼光谱、紫外-可见光谱、能量色散 X 射线光谱、显微光致发光光谱和 X 射线衍射对相应的样品进行了分析。结果表明,Cs2AgBiBr6 在环境条件下具有很高的内在稳定性,而在水生条件下则会发生严重降解。此外,在模拟太阳辐照过程中还发现了表面形貌的改变,这表明了光加速降解行为。这项研究的结果清楚地表明,需要加大研究力度,密封太阳能电池中的 Cs2AgBiBr6 层,目的是同时防止潮湿和水的侵入,从而避免光加速降解。
{"title":"Solar Degradation and Stability of Lead-Free Light Absorber Cs2AgBiBr6 in Ambient Conditions","authors":"Dennis Michael Jöckel,&nbsp;Songhak Yoon,&nbsp;Alexander Frebel,&nbsp;Samuel Meles Neguse,&nbsp;Jürgen Dieter Rossa,&nbsp;Alexander Jürgen Bett,&nbsp;Martin Schubert,&nbsp;Marc Widenmeyer,&nbsp;Benjamin Balke–Grünewald,&nbsp;Anke Weidenkaff","doi":"10.1002/adpr.202300269","DOIUrl":"10.1002/adpr.202300269","url":null,"abstract":"<p>As numerous studies on highly efficient perovskite solar cells have been conducted on lead-based light absorbers, such as MAPbI<sub>3</sub> and FAPbI<sub>3</sub>, increasing concerns are rising regarding toxicity and stability issues. One of the most prominent and promising lead-free alternatives is the double-perovskite Cs<sub>2</sub>AgBiBr<sub>6</sub>, which is well-suited for multi-junction solar cells considering its relatively large indirect bandgap of around 1.95–2.05 eV. Despite distinctive reports on its performance under ambient conditions, the demonstrated stability has not yet been conclusively clarified. Within this study, the degradation behavior of Cs<sub>2</sub>AgBiBr<sub>6</sub> single crystals is investigated under different ambient environments, such as AM1.5g solar irradiation, aquatic conditions, and humidity. The corresponding samples are analyzed by using Raman, UV–vis, energy-dispersive X-Ray, and micro-photoluminescence spectroscopies together with X-Ray diffraction. High intrinsic stability of Cs<sub>2</sub>AgBiBr<sub>6</sub> in ambient conditions and severe degradation in aquatic conditions are observed. Furthermore, surface morphology alterations are found during the simulated solar irradiation indicating photo-accelerated degradation behavior. In the results of this study, it is clearly implied that intense research efforts need to be put into sealing the Cs<sub>2</sub>AgBiBr<sub>6</sub> layer in solar cells with the goal of protecting it from humidity and water intrusion simultaneously, therefore avoiding photo-accelerated degradation.</p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 5","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300269","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139961265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Progress in Printable Colloidal Photonic Crystals 可打印胶体光子晶体的研究进展
IF 3.7 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-02-13 DOI: 10.1002/adpr.202300329
Yang Hu, Chenze Qi, Dongpeng Yang, Shaoming Huang

Printable colloidal photonic crystals (CPCs) with unique photonic bandgaps and elaborate shapes have attracted significant interest due to their characteristics, such as simplicity of fabrication, adjustable structural colors, photobleaching resistance, and stimulus-responsiveness. In this review, strategies for printing CPC patterns, including direct use of CPCs as inks, region-selective modification on responsive (solvent, force, and temperature) CPC papers, and printing combined with lithography, are first summarized. Second, based on the advantages of CPC printing technology, their applications in color displays, coatings, sensors, anticounterfeiting labels, and information storage, are discussed in detail. Finally, the current challenges and outlook regarding CPC printing technology are proposed.

可印刷胶体光子晶体(CPC)具有独特的光子带隙和精致的形状,因其制作简单、结构颜色可调、耐光漂白和刺激响应性强等特点而备受关注。在这篇综述中,首先总结了印刷 CPC 图案的策略,包括直接使用 CPC 作为油墨、在响应性(溶剂、力和温度)CPC 纸上进行区域选择性改性以及印刷与光刻相结合。其次,基于 CPC 印刷技术的优势,详细讨论了其在彩色显示器、涂层、传感器、防伪标签和信息存储方面的应用。最后,提出了当前 CPC 印刷技术面临的挑战和展望。
{"title":"Progress in Printable Colloidal Photonic Crystals","authors":"Yang Hu,&nbsp;Chenze Qi,&nbsp;Dongpeng Yang,&nbsp;Shaoming Huang","doi":"10.1002/adpr.202300329","DOIUrl":"https://doi.org/10.1002/adpr.202300329","url":null,"abstract":"<p>Printable colloidal photonic crystals (CPCs) with unique photonic bandgaps and elaborate shapes have attracted significant interest due to their characteristics, such as simplicity of fabrication, adjustable structural colors, photobleaching resistance, and stimulus-responsiveness. In this review, strategies for printing CPC patterns, including direct use of CPCs as inks, region-selective modification on responsive (solvent, force, and temperature) CPC papers, and printing combined with lithography, are first summarized. Second, based on the advantages of CPC printing technology, their applications in color displays, coatings, sensors, anticounterfeiting labels, and information storage, are discussed in detail. Finally, the current challenges and outlook regarding CPC printing technology are proposed.</p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 8","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300329","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Full-Space Janus Meta-Lens for Shared-Aperture Transmission-Reflection-Independent Focusing of Electromagnetic Wave 用于共享孔径透射-反射独立聚焦电磁波的全空间简纳斯元透镜
IF 3.7 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-02-10 DOI: 10.1002/adpr.202300349
Shufang Dong, Kai Qu, Qi Hu, Shaojie Wang, Ke Chen, Yijun Feng

Janus metasurfaces emerge as a promising platform for implementing multiple wave functionalities by fully exploiting the inherent propagation direction of electromagnetic waves. Their out-of-plane asymmetric structures enable different wave functions depending on the propagation direction. Herein, a multiplexed Janus metasurface is proposed, which operates in the microwave region to flexibly manipulate the transmission and reflection wavefronts for same linearly polarized (LP) incidence propagating along the two opposite directions. A meta-lens is constructed to validate the concept of full-space shared-aperture transmission-reflection-independent focusing of electromagnetic (EM) waves, exhibiting four distinct focusing performances. Experiments are conducted in the microwave region that agree well with the simulation results. The proposed full-space Janus metasurface may provide a platform for asymmetric imaging, multichannel information processing, and encrypted communication.

杰纳斯元表面是一种很有前途的平台,它能充分利用电磁波固有的传播方向来实现多种波功能。其平面外不对称结构可根据传播方向实现不同的波功能。在此,我们提出了一种复用 Janus 元表面,它可在微波区域灵活操纵沿两个相反方向传播的相同线性偏振(LP)入射的传输和反射波面。我们构建了一个元透镜来验证全空间共享孔径透射-反射独立聚焦电磁波(EM)的概念,并展示了四种不同的聚焦性能。在微波区域进行的实验与模拟结果完全吻合。所提出的全空间 Janus 元表面可为非对称成像、多通道信息处理和加密通信提供一个平台。
{"title":"Full-Space Janus Meta-Lens for Shared-Aperture Transmission-Reflection-Independent Focusing of Electromagnetic Wave","authors":"Shufang Dong,&nbsp;Kai Qu,&nbsp;Qi Hu,&nbsp;Shaojie Wang,&nbsp;Ke Chen,&nbsp;Yijun Feng","doi":"10.1002/adpr.202300349","DOIUrl":"10.1002/adpr.202300349","url":null,"abstract":"<p>Janus metasurfaces emerge as a promising platform for implementing multiple wave functionalities by fully exploiting the inherent propagation direction of electromagnetic waves. Their out-of-plane asymmetric structures enable different wave functions depending on the propagation direction. Herein, a multiplexed Janus metasurface is proposed, which operates in the microwave region to flexibly manipulate the transmission and reflection wavefronts for same linearly polarized (LP) incidence propagating along the two opposite directions. A meta-lens is constructed to validate the concept of full-space shared-aperture transmission-reflection-independent focusing of electromagnetic (EM) waves, exhibiting four distinct focusing performances. Experiments are conducted in the microwave region that agree well with the simulation results. The proposed full-space Janus metasurface may provide a platform for asymmetric imaging, multichannel information processing, and encrypted communication.</p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 9","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300349","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139846716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Advanced Photonics Research
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1