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Optical Self-Assembly of Chiral Nanostructures by a Seed Symmetry-Breaking Effect

IF 11 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews

Pub Date : 2025-02-21 DOI: 10.1002/lpor.202402108

Yi Wang, Zhen-Ze Li, Hong-Wei Zhou, Rui-Fan Li, Jia-Tai Huang, Zhu Lin, Qi-Dai Chen, Lei Wang, Hong-Bo Sun

It has been established that assembling chiral nanostructures using a circularly polarized laser is formidable due to their symmetry mismatch. Traditionally, complex light fields or chiral precursors are considered prerequisites for optical chiral self-assembly. Herein, an unexpected seed symmetry-breaking (SSB) effect is reported, through which not only are chiral structures readily assembled by circularly polarized light in a controllable manner, but the physical mechanism of chiral assembly reported so far is also clarified. The SSB effect refers to a phenomenon of symmetry reduction in photo-generated structures—the seed for ensuing structure growth—which inevitably leads to a chiral near field and the formation of resultant chiral structures. As proof of concept, the near fields as well as the process of chiral structure evolution are recorded using a low-melting-point film. In this particular case, laser-induced nanoscale Rayleigh–Taylor instability (nano-RTI) is responsible for the initial SSB. Consequently, a simple and rapid chiral structure self-assembly method is developed, and a programmable array with a 15% peak in the circular differential scattering spectrum (CDS) is realized.

{"title":"Optical Self-Assembly of Chiral Nanostructures by a Seed Symmetry-Breaking Effect","authors":"Yi Wang, Zhen-Ze Li, Hong-Wei Zhou, Rui-Fan Li, Jia-Tai Huang, Zhu Lin, Qi-Dai Chen, Lei Wang, Hong-Bo Sun","doi":"10.1002/lpor.202402108","DOIUrl":"https://doi.org/10.1002/lpor.202402108","url":null,"abstract":"It has been established that assembling chiral nanostructures using a circularly polarized laser is formidable due to their symmetry mismatch. Traditionally, complex light fields or chiral precursors are considered prerequisites for optical chiral self-assembly. Herein, an unexpected seed symmetry-breaking (SSB) effect is reported, through which not only are chiral structures readily assembled by circularly polarized light in a controllable manner, but the physical mechanism of chiral assembly reported so far is also clarified. The SSB effect refers to a phenomenon of symmetry reduction in photo-generated structures—the seed for ensuing structure growth—which inevitably leads to a chiral near field and the formation of resultant chiral structures. As proof of concept, the near fields as well as the process of chiral structure evolution are recorded using a low-melting-point film. In this particular case, laser-induced nanoscale Rayleigh–Taylor instability (nano-RTI) is responsible for the initial SSB. Consequently, a simple and rapid chiral structure self-assembly method is developed, and a programmable array with a 15% peak in the circular differential scattering spectrum (CDS) is realized.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"35 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High‐Speed Blue Laser Diodes with InGaN Quantum Barrier for Beyond 36 Gbps Visible Light Communications

IF 11 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews

Pub Date : 2025-02-20 DOI: 10.1002/lpor.202401751

Haolin Jia, Junhui Hu, Zengyi Xu, Zhenqian Gu, Zhen Yang, Zengxin Li, Yingjun Zhou, Jianyang Shi, Ziwei Li, Junwen Zhang, Nan Chi, Chao Shen

Laser‐based visible light communication (VLC) is emerging as a crucial technology for future applications like the Internet of Things and artificial intelligence. However, the data transmission rate is limited by the modulation bandwidth of visible laser diodes (LDs). This paper presents the design and fabrication of blue GaN‐based short‐cavity (300 µm/500 µm) LDs with InGaN quantum barrier (QB) and a narrow ridge width of 2 µm for high‐speed VLC systems. Theoretical analyses of the band structure and carrier distribution, along with experimental results, reveal significant improvements in electro‐optical performance and frequency response of the demonstrated blue LDs with InGaN QB. A high slope efficiency of 1.85 W A−1, a wall‐plug efficiency of 29%, and an intrinsic 3 dB bandwidth exceeding 8 GHz are achieved. By using the high‐speed blue LD as a transmitter, the VLC system achieves a record data rate of 36.5 Gbps. The system shows a larger operation window for high speed and better temperature adaptability, marking a substantial advancement for high‐speed VLC links.

{"title":"High‐Speed Blue Laser Diodes with InGaN Quantum Barrier for Beyond 36 Gbps Visible Light Communications","authors":"Haolin Jia, Junhui Hu, Zengyi Xu, Zhenqian Gu, Zhen Yang, Zengxin Li, Yingjun Zhou, Jianyang Shi, Ziwei Li, Junwen Zhang, Nan Chi, Chao Shen","doi":"10.1002/lpor.202401751","DOIUrl":"https://doi.org/10.1002/lpor.202401751","url":null,"abstract":"Laser‐based visible light communication (VLC) is emerging as a crucial technology for future applications like the Internet of Things and artificial intelligence. However, the data transmission rate is limited by the modulation bandwidth of visible laser diodes (LDs). This paper presents the design and fabrication of blue GaN‐based short‐cavity (300 µm/500 µm) LDs with InGaN quantum barrier (QB) and a narrow ridge width of 2 µm for high‐speed VLC systems. Theoretical analyses of the band structure and carrier distribution, along with experimental results, reveal significant improvements in electro‐optical performance and frequency response of the demonstrated blue LDs with InGaN QB. A high slope efficiency of 1.85 W A−1, a wall‐plug efficiency of 29%, and an intrinsic 3 dB bandwidth exceeding 8 GHz are achieved. By using the high‐speed blue LD as a transmitter, the VLC system achieves a record data rate of 36.5 Gbps. The system shows a larger operation window for high speed and better temperature adaptability, marking a substantial advancement for high‐speed VLC links.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hyper-Sampling Imaging by Measurement of Intra-Pixel Quantum Efficiency Using Steady Wave Field (Laser Photonics Rev. 19(4)/2025)

IF 9.8 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews

Pub Date : 2025-02-19 DOI: 10.1002/lpor.202570015

Hemeng Xue, Mingtao Shang, Ze Zhang, Hongfei Yu, Jinchao Liang, Meiling Guan, Chengming Sun, Huahua Wang, Shufeng Wang, Zhengyu Ye, Feng Gao, Lu Gao

Improving the Sampling Limit of DISs

A groundbreaking approach has been developed to enhance the pixel resolution of digital image sensors (DISs) by measuring the intra-pixel quantum efficiency distribution with a dynamic optical steady beam. This innovative method enables the reconstruction of hyper-sampling images with a resolution several times higher than the original sensor resolution by capturing multiple frames of the same scene during object or camera movement. It offers a novel perspective on amplifying image sensor resolution not through manufacturing enhancements, but by employing existing sensors in a different way. For detailed information, see article 2401306 by Ze Zhang, and co-workers.

{"title":"Hyper-Sampling Imaging by Measurement of Intra-Pixel Quantum Efficiency Using Steady Wave Field (Laser Photonics Rev. 19(4)/2025)","authors":"Hemeng Xue, Mingtao Shang, Ze Zhang, Hongfei Yu, Jinchao Liang, Meiling Guan, Chengming Sun, Huahua Wang, Shufeng Wang, Zhengyu Ye, Feng Gao, Lu Gao","doi":"10.1002/lpor.202570015","DOIUrl":"https://doi.org/10.1002/lpor.202570015","url":null,"abstract":"<p><b>Improving the Sampling Limit of DISs</b></p><p>A groundbreaking approach has been developed to enhance the pixel resolution of digital image sensors (DISs) by measuring the intra-pixel quantum efficiency distribution with a dynamic optical steady beam. This innovative method enables the reconstruction of hyper-sampling images with a resolution several times higher than the original sensor resolution by capturing multiple frames of the same scene during object or camera movement. It offers a novel perspective on amplifying image sensor resolution not through manufacturing enhancements, but by employing existing sensors in a different way. For detailed information, see article 2401306 by Ze Zhang, and co-workers.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"19 4","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lpor.202570015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Concurrent Image Differentiation and Integration Processings Enabled By Polarization-Multiplexed Metasurface (Laser Photonics Rev. 19(4)/2025)

IF 9.8 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews

Pub Date : 2025-02-19 DOI: 10.1002/lpor.202570013

Xinyi Bi, Xuanguang Wu, Xinhao Fan, Chenyang Zhao, Dandan Wen, Sheng Liu, Xuetao Gan, Jianlin Zhao

Toward Concurrent Processing

In article number 2400718, Peng Li and co-workers propose a metasurface-based optical image processor for performing multiple analog optical computing tasks simultaneously; this enables concurrent image differential and integral operations for edge enhancement and denoising at multiple visible wavelengths. This concurrent processing architecture paves a promising pathway towards multifunctional and higher-speed image processing for machine vision and biomedical imaging.

引用次数: 0

Metasurface‐Integrated Organic Light‐Emitting Diodes: Analysis of Spectral Effects on Theoretical and Experimental Performance

IF 11 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews

Pub Date : 2025-02-19 DOI: 10.1002/lpor.202402132

Kyungnam Kang, Hajun Yoo, Hyunwoong Lee, Sukhyeon Ka, Jaeyun Kim, Myungchan An, Young Gu Kim, DuckJong Suh, Sunghan Kim, Jungho Kim, Donghyun Kim

Organic light‐emitting diodes (OLEDs) have emerged as a leading display technology and become rapidly embraced in commercial applications. In this paper, we explore the integration of metasurface (MS) designs for polarizer‐free top‐emitting OLEDs (TOLEDs) with enhanced absorption of ambient light. From the performance evaluated by varying the geometrical parameters of the MS, it is found that the broadband absorption in the long wavelength range, associated with the localized surface plasmon mode of the MS, can be tuned by adjusting these parameters. Optimizing these parameters can effectively localize and enhance near‐fields at the MS edges, thereby reducing the reflectance of MS‐integrated TOLEDs (MI‐TOLEDs) under ambient light. An optimized MS may balance reduced reflectance with minimal emission loss from TOLEDs. Numerical results suggest that MI‐TOLEDs can improve spectral out‐coupled light intensity and overall angular enhancement of the out‐coupled power by at least 50% and 45%, respectively, over conventional TOLED. In the whole visible wavelength range, the MI‐TOLED shows 48% lower reflectance compared to conventional TOLED, which is confirmed by experimental data measured from the MS optical cavity. Changes in encapsulation thickness influence the surface plasmon polariton mode, shifting resonance conditions in the reflectance spectra within the short wavelength range.

{"title":"Metasurface‐Integrated Organic Light‐Emitting Diodes: Analysis of Spectral Effects on Theoretical and Experimental Performance","authors":"Kyungnam Kang, Hajun Yoo, Hyunwoong Lee, Sukhyeon Ka, Jaeyun Kim, Myungchan An, Young Gu Kim, DuckJong Suh, Sunghan Kim, Jungho Kim, Donghyun Kim","doi":"10.1002/lpor.202402132","DOIUrl":"https://doi.org/10.1002/lpor.202402132","url":null,"abstract":"Organic light‐emitting diodes (OLEDs) have emerged as a leading display technology and become rapidly embraced in commercial applications. In this paper, we explore the integration of metasurface (MS) designs for polarizer‐free top‐emitting OLEDs (TOLEDs) with enhanced absorption of ambient light. From the performance evaluated by varying the geometrical parameters of the MS, it is found that the broadband absorption in the long wavelength range, associated with the localized surface plasmon mode of the MS, can be tuned by adjusting these parameters. Optimizing these parameters can effectively localize and enhance near‐fields at the MS edges, thereby reducing the reflectance of MS‐integrated TOLEDs (MI‐TOLEDs) under ambient light. An optimized MS may balance reduced reflectance with minimal emission loss from TOLEDs. Numerical results suggest that MI‐TOLEDs can improve spectral out‐coupled light intensity and overall angular enhancement of the out‐coupled power by at least 50% and 45%, respectively, over conventional TOLED. In the whole visible wavelength range, the MI‐TOLED shows 48% lower reflectance compared to conventional TOLED, which is confirmed by experimental data measured from the MS optical cavity. Changes in encapsulation thickness influence the surface plasmon polariton mode, shifting resonance conditions in the reflectance spectra within the short wavelength range.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"15 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-Divergence Wave-Chaotic Microlasers From Fiber-Hybridized Colloidal Quantum Dots

IF 11 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews

Pub Date : 2025-02-19 DOI: 10.1002/lpor.202402136

Yinjuan Ren, Shouda Zou, Kehan Li, Yuting Wu, Yechun Ding, Feng Li, Shengli Liu, Yue Wang

Colloidal quantum dot (QD) lasers have attracted intense interest by virtue of their cost-effective solution-processibility and broadband spectral tunability. However, the present QD lasers generally exhibit poor directionality and divergence, which hinders their implementations in fiber optics and photonic circuits. Here, a novel kind of QD laser utilizing a fused silica fiber platform is designed and fabricated, which features directional and low-divergence output in combination with the high Q-factors. Based on the comprehensive numerical simulation and spectroscopic characterizations, the merits of the laser are attributed to the presence of a new kind of resonance mode termed waveguide-multiple islands in the QD-fiber hybrid resonator. The low divergence is well explained by the converging effect of the high-refractive curved boundary on the outgoing light. Furthermore, the output angle and the far-field distribution can be modulated on-demand by breaking the resonance symmetry through adjusting the diameter of constituted fibers. The laser design is general for QD gain media, such that the low-divergence red, green, and blue coherent emission is obtained. These findings represent significant progress toward the integration application of QD lasers.

{"title":"Low-Divergence Wave-Chaotic Microlasers From Fiber-Hybridized Colloidal Quantum Dots","authors":"Yinjuan Ren, Shouda Zou, Kehan Li, Yuting Wu, Yechun Ding, Feng Li, Shengli Liu, Yue Wang","doi":"10.1002/lpor.202402136","DOIUrl":"https://doi.org/10.1002/lpor.202402136","url":null,"abstract":"Colloidal quantum dot (QD) lasers have attracted intense interest by virtue of their cost-effective solution-processibility and broadband spectral tunability. However, the present QD lasers generally exhibit poor directionality and divergence, which hinders their implementations in fiber optics and photonic circuits. Here, a novel kind of QD laser utilizing a fused silica fiber platform is designed and fabricated, which features directional and low-divergence output in combination with the high Q-factors. Based on the comprehensive numerical simulation and spectroscopic characterizations, the merits of the laser are attributed to the presence of a new kind of resonance mode termed waveguide-multiple islands in the QD-fiber hybrid resonator. The low divergence is well explained by the converging effect of the high-refractive curved boundary on the outgoing light. Furthermore, the output angle and the far-field distribution can be modulated on-demand by breaking the resonance symmetry through adjusting the diameter of constituted fibers. The laser design is general for QD gain media, such that the low-divergence red, green, and blue coherent emission is obtained. These findings represent significant progress toward the integration application of QD lasers.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"47 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143462352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanisms and Suppression of Quantum Dot Blinking

IF 11 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews

Pub Date : 2025-02-19 DOI: 10.1002/lpor.202402269

Changgang Yang, Guofeng Zhang, Jialu Li, Ruiyun Chen, Chengbing Qin, Jianyong Hu, Zhichun Yang, Liantuan Xiao, Suotang Jia

Colloidal quantum dots (QDs) have been awarded the 2023 Nobel Prize in Chemistry for their unique optoelectronic properties and great potential for applications. QD photoluminescence (PL) blinking research has made a significant contribution to the development of high quality QD materials and related applications. Almost all colloidal QDs are subject to PL blinking, a phenomenon in which the PL intensity of single QD randomly switches between different emission states. The blinking behavior disrupts the PL emission of QDs and hinders related QD-based applications. Studies of QD blinking provide insight into the blinking mechanisms and contribute to the development of methods to suppress blinking. This review summarizes the significant advances in the understanding of PL blinking mechanisms and the development of suppression strategies since the first observation of PL blinking in single QDs. Specifically, it covers the Auger-blinking mechanism, the band-edge carrier blinking mechanism, the conversion of blinking types and their origins, the size dependence of blinking behavior, and various advanced blinking suppression strategies. Looking ahead, the integration of the advanced suppression strategies into various QD applications to unlock the full potential of colloidal QDs will be a key focus of future research.

{"title":"Mechanisms and Suppression of Quantum Dot Blinking","authors":"Changgang Yang, Guofeng Zhang, Jialu Li, Ruiyun Chen, Chengbing Qin, Jianyong Hu, Zhichun Yang, Liantuan Xiao, Suotang Jia","doi":"10.1002/lpor.202402269","DOIUrl":"https://doi.org/10.1002/lpor.202402269","url":null,"abstract":"Colloidal quantum dots (QDs) have been awarded the 2023 Nobel Prize in Chemistry for their unique optoelectronic properties and great potential for applications. QD photoluminescence (PL) blinking research has made a significant contribution to the development of high quality QD materials and related applications. Almost all colloidal QDs are subject to PL blinking, a phenomenon in which the PL intensity of single QD randomly switches between different emission states. The blinking behavior disrupts the PL emission of QDs and hinders related QD-based applications. Studies of QD blinking provide insight into the blinking mechanisms and contribute to the development of methods to suppress blinking. This review summarizes the significant advances in the understanding of PL blinking mechanisms and the development of suppression strategies since the first observation of PL blinking in single QDs. Specifically, it covers the Auger-blinking mechanism, the band-edge carrier blinking mechanism, the conversion of blinking types and their origins, the size dependence of blinking behavior, and various advanced blinking suppression strategies. Looking ahead, the integration of the advanced suppression strategies into various QD applications to unlock the full potential of colloidal QDs will be a key focus of future research.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"249 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143462357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Broadband Long-Wave Infrared On-Chip Silicon-based Surface-Enhanced Laser Spectroscopy Enabled by Gradient Nanoantenna Array (Laser Photonics Rev. 19(4)/2025)

IF 9.8 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews

Pub Date : 2025-02-19 DOI: 10.1002/lpor.202570014

Donglai An, Zihao Liu, Zhouzhuo Tang, Jing Ni, Qi Jie Wang

Broadband Infrared Biomolecular Detection

This cover image illustrates a waveguide-integrated surface-enhanced nanoantenna chip that simultaneously measures the amide I and II band absorption of proteins. When a long-wave infrared light is launched, an evanescent field is formed on the surface of the waveguide. The absorption of protein molecules is further enhanced with a high-intensity field excited by the gold nanoantenna. The idea of integrating the large-core rib silicon waveguide and gradient nanoantenna array can be used for multiplexed broadband biomolecular absorption detection with high-throughput. See article 2400871 by Xia Yu and co-workers for more details.

引用次数: 0

Metasurface-generated Spin-multiplexed & Grafted Perfect Vector Vortex Beams for High-dimensional Optical Information Encryption

IF 11 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews

Pub Date : 2025-02-19 DOI: 10.1002/lpor.202402033

Yao Fang, Han Hao, Qingsong Wang, Jinjin Jin, Yu Meng, Li Shen, Xiong Li, Rui Zhou, Xiangang Luo

A dual-layer optical information encryption (OIE) strategy based on a single metasurface (MS) is proposed to enhance the security of OIE significantly. This highly integrated and secure OIE method le...

引用次数: 0

Tight Focusing Holographic Network Enables 3D Real Time and Accurate Light Field Modulation

IF 11 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews

Pub Date : 2025-02-19 DOI: 10.1002/lpor.202401742

Jiajia Wu, Xinkuo Li, Ke Sun, Kai Gao, Chenduan Chen, Jianrong Qiu, Dezhi Tan

Phase‐only computer‐generated holography (CGH) is an effective technique to manipulate 3D light field distribution in the tight focusing volume for numerous applications in micro/nano‐manufacturing, optical tweezers, and optical communication. Unfortunately, hologram computation is slow and generally takes several seconds or longer for a single instance, which hinders broad applications in real time light modulation. Here, fast hologram computation is reported with the calculation time for a single instance down to 3.7 ms. A depth‐adaptive 3D tight‐focusing holographic network framework driven by a vectorial diffraction model is developed. The network adequately considers the tight‐focusing property and the spherical aberration effect in high NA objectives and employs a layer‐based learning strategy to reinforce the global constraints on reconstructed 3D focusing fields. This network enables the generation of high‐quality holographic phases in real time and facilitates large‐scale computations of focused fields with arbitrary spatial, intensity, and axial spacing distributions with high speed and high accuracy (up to 0.93). The proposed network is deployed in ultrafast laser direct writing and microscale fluorescence display applications, which indicates that the current 3D tight‐focusing field modulation technique will play a vital role in broad optical and photonic engineering.

{"title":"Tight Focusing Holographic Network Enables 3D Real Time and Accurate Light Field Modulation","authors":"Jiajia Wu, Xinkuo Li, Ke Sun, Kai Gao, Chenduan Chen, Jianrong Qiu, Dezhi Tan","doi":"10.1002/lpor.202401742","DOIUrl":"https://doi.org/10.1002/lpor.202401742","url":null,"abstract":"Phase‐only computer‐generated holography (CGH) is an effective technique to manipulate 3D light field distribution in the tight focusing volume for numerous applications in micro/nano‐manufacturing, optical tweezers, and optical communication. Unfortunately, hologram computation is slow and generally takes several seconds or longer for a single instance, which hinders broad applications in real time light modulation. Here, fast hologram computation is reported with the calculation time for a single instance down to 3.7 ms. A depth‐adaptive 3D tight‐focusing holographic network framework driven by a vectorial diffraction model is developed. The network adequately considers the tight‐focusing property and the spherical aberration effect in high NA objectives and employs a layer‐based learning strategy to reinforce the global constraints on reconstructed 3D focusing fields. This network enables the generation of high‐quality holographic phases in real time and facilitates large‐scale computations of focused fields with arbitrary spatial, intensity, and axial spacing distributions with high speed and high accuracy (up to 0.93). The proposed network is deployed in ultrafast laser direct writing and microscale fluorescence display applications, which indicates that the current 3D tight‐focusing field modulation technique will play a vital role in broad optical and photonic engineering.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"24 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143443281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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