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Frontiers in optics. Annual Meeting of the Optical Society of America最新文献

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High repetition rate ultrashort pulse train generation in the tapered silicon ridge waveguide 锥形硅脊波导中高重复率超短脉冲串的产生
Pub Date : 2020-09-14 DOI: 10.1364/FIO.2020.JTU1A.44
Feng Ye, Qian Li
We numerically demonstrate the generation of a high-repetition-rate ultrashort pulse train in a 5-cm-long tapered silicon waveguide. Pulse width of a single pulse in the pulse train is compressed from 1.5625 ps to 102.4 fs.
我们在数值上演示了在5厘米长的锥形硅波导中产生高重复率的超短脉冲序列。脉冲序列中单个脉冲的脉宽从1.5625 ps压缩到102.4 fs。
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引用次数: 0
Structural characterisation of North-east Indian rice starch using Second Harmonic Generation (SHG) microscopy 用二次谐波发生(SHG)显微镜分析东北印度大米淀粉的结构特征
Pub Date : 2020-09-14 DOI: 10.1364/FIO.2020.JTU1B.29
I. Chakraborty, Indira Govindaraju, Guan-Yu Zhuo, V. J. Baruah, B. Sarmah, K. K. Mahato, Soumyabrata Banik, N. Mazumder
Ultrastructural characterisation of North east Indian rice starch varieties using SHG microscopy. The SHG signal is generated from the amylopectin molecules in rice starch and is further correlated with results obtained from X- ray diffraction.
利用SHG显微镜对东北印度水稻淀粉品种进行超微结构表征。SHG信号是由大米淀粉中的支链淀粉分子产生的,并与X射线衍射结果进一步相关。
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引用次数: 0
Black Box Coupled Mode Theory: Analysis of Loading Effects in Optical interactions between Nanoresonators 黑盒耦合模式理论:纳米谐振腔间光学相互作用的加载效应分析
Pub Date : 2020-09-14 DOI: 10.1364/FIO.2020.FW1B.3
S. A. S. Tali, Wei Zhou
Black Box Coupled Mode Theory is an electromagnetic resonator analysis and design tool based on the theory of quasinormal modes. Alongside its rigorous formulation, the theory casts a novel insight into electromagnetic resonators' operation principles.
黑盒耦合模理论是一种基于准正态模理论的电磁谐振器分析与设计工具。除了严谨的公式外,该理论还对电磁谐振器的工作原理提出了新的见解。
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引用次数: 0
Multi-domain Study of Oriented Thin-film Barium Titanate 取向钛酸钡薄膜的多畴研究
Pub Date : 2020-09-14 DOI: 10.1364/FIO.2020.FW7D.7
Anupama Vasudevan, S. Selvaraja
We present a multi-domain and orientation simulation study of thin-film Barium Titanate. We present the effect of domains on the effective index change under the electric field for unpoled and poled thin films.
本文对钛酸钡薄膜进行了多畴取向模拟研究。本文研究了电场作用下非极化和极化薄膜有效折射率变化的影响。
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引用次数: 0
Correction of CMOS-related noise in fluorescence microscopy 荧光显微镜中cmos相关噪声的校正
Pub Date : 2020-09-14 DOI: 10.1364/FIO.2020.JM6B.19
B. Mandracchia, Xuanwen Hua, Changliang Guo, Jeonghwan Son, T. Urner, Shu Jia
CMOS cameras are very appealing for fluorescence microscopy but they suffer from high readout noise and fixed-pattern noise. We propose a non-iterative, fast, and unsupervised algorithm that erases camera-related noise without losing the quantitative information of fluorescence signal. Finally, we demonstrate the performance of the algorithm using different sensors, from low-cost CMOS chips to high-end sCMOS cameras.
CMOS相机对荧光显微镜非常有吸引力,但它们存在高读出噪声和固定模式噪声。我们提出了一种非迭代、快速、无监督的算法,该算法可以在不丢失荧光信号定量信息的情况下消除相机相关噪声。最后,我们用不同的传感器演示了算法的性能,从低成本的CMOS芯片到高端的sCMOS相机。
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引用次数: 0
Graphene-based multi-wavelength source for WDM-PON 基于石墨烯的WDM-PON多波长源
Pub Date : 2020-09-14 DOI: 10.1364/FIO.2020.JTH4B.4
Jhon A. Lopera, Karen Arroyave, A. Cárdenas, J. J. G. Torres, J. Zapata
We propose a graphene-based multi-wavelength source for WDM-PON applications. The transmission performance is evaluated in comparison with a Flat Combs Generator based on a Mach-Zehnder-Modulator obtaining distance penalties less than 5 km at BER 10−9.
我们提出了一种基于石墨烯的WDM-PON多波长源。通过与基于马赫-曾德尔调制器的平梳发生器进行比较,评估了传输性能,在BER 10−9下获得了小于5 km的距离损失。
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引用次数: 1
Higher-Order Topological Insulators in Nanophotonic Smart-Patterns 纳米光子智能模式中的高阶拓扑绝缘体
Pub Date : 2020-09-14 DOI: 10.1364/FIO.2020.FTH5C.8
A. Safaei, Nayan E. Myerson-Jain, Farhadul Haque, T. Hughes, G. Bahl
We experimentally demonstrate higher-order topological insulators in smart-patterned photonic nanostructures. The arrays are constructed with silicon nanopillars and measured by scanning near-field optical microscopy.
我们实验证明了智能图像化光子纳米结构中的高阶拓扑绝缘体。该阵列由硅纳米柱构成,并通过扫描近场光学显微镜进行测量。
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引用次数: 0
Adaptive modulation function measurements of a human retina in the presence of SCE-I SCE-I存在下人眼视网膜的自适应调制函数测量
Pub Date : 2020-09-14 DOI: 10.1364/FIO.2020.JTU1B.21
Sumit Ghosh
Study of adaptive modulation function of a human retina in presence of SCE-I has been made. We measured the incoherent sine wave response and then obtained the modulations in the images using periodic triangular targets.
研究了SCE-I存在下人眼视网膜的自适应调制功能。我们测量了非相干正弦波响应,然后利用周期性三角靶得到了图像中的调制。
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引用次数: 1
Dissipative Five-level Quantum Systems: A Quantum Model of Photosynthetic Reaction Centers 耗散五能级量子系统:光合反应中心的量子模型
Pub Date : 2020-09-14 DOI: 10.1364/FIO.2020.JM6B.26
Zibo Wang, I. Mirza
Recent studies suggested that coherence can enhance the photosynthetic yield. In this work, we show how photosynthesis can be modeled as a five-level quantum heat engine and how its environmental interaction leads to noise-induced coherence.
最近的研究表明,相干性可以提高光合产量。在这项工作中,我们展示了如何将光合作用建模为一个五能级量子热机,以及它的环境相互作用如何导致噪声诱导相干性。
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引用次数: 2
OASys: Envisioning an Opto-electronic Accelerator for Deep Learning Applications OASys:展望用于深度学习应用的光电加速器
Pub Date : 2020-09-14 DOI: 10.1364/FIO.2020.FM7D.1
Youchao Wang, T. Wilkinson
We propose OASys, an Opto-electronic Accelerator System, for efficient deep learning acceleration. The system takes on a full-stack architectural design approach and combines the power of Fourier optics and conventional FPGAs.
该系统采用全栈架构设计方法,结合了傅里叶光学和传统fpga的功能。
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引用次数: 1
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Frontiers in optics. Annual Meeting of the Optical Society of America
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