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| 1 | 基于超构表面的多维光场感知显示文摘光场包含了振幅、相位、光谱、偏振等多个维度的信息。传统光电探测器一般仅能感知二维光强信息,若想实现对光场其他维度信息的获取,需利用多个光学元件组合,故存在系统复杂、难以集成等问题。超构表面是一种亚波长尺度的新型平面光学元件。通过灵活的平面结构设计,超构表面可以对光场的振幅、相位、光谱、偏振等多维信息进行调控,从而为轻量化、集成化多维光场感知系统的实现提供可能。详细介绍了国内外基于超构表面实现光谱、偏振、深度等多维光场信息感知的最新研究成果,并对目前超构表面在多维光场感知领域面临的挑战以及未来的发展趋势进行了展望。 | 倪一博 闻顺 沈子程 杨原牧 | 2021 | 中国激光2021，48，19： | 8 |
| 2 | Crosstalk-free achromatic full Stokes imaging polarimetry metasurface enabled by polarization-dependent phase optimization显示文摘Imaging polarimetry is one of the most widely used analytical technologies for object detection and analysis.To date,most metasurface-based polarimetry techniques are severely limited by narrow operating bandwidths and inevitable crosstalk,leading to detrimental effects on imaging quality and measurement accuracy.Here,we propose a crosstalkfree broadband achromatic full Stokes imaging polarimeter consisting of polarization-sensitive dielectric metalenses,implemented by the principle of polarization-dependent phase optimization.Compared with the single-polarization optimization method,the average crosstalk has been reduced over three times under incident light with arbitrary polarization ranging from 9μm to 12μm,which guarantees the measurement of the polarization state more precisely.The experimental results indicate that the designed polarization-sensitive metalenses can effectively eliminate the chromatic aberration with polarization selectivity and negligible crosstalk.The measured average relative errors are 7.08%,8.62%,7.15%,and 7.59%at 9.3,9.6,10.3,and 10.6μm,respectively.Simultaneously,the broadband full polarization imaging capability of the device is also verified.This work is expected to have potential applications in wavefront detection,remote sensing,light-field imaging,and so forth. | Yaxin Zhang Mingbo Pu Jinjin Jin Xinjian Lu Yinghui Guo Jixiang Cai Fei Zhang Yingli Ha Qiong He Mingfeng Xu Xiong Li Xiaoliang Ma Xiangang Luo | 2022 | Opto-Electronic Advances2022，5，11： | 6 |
| 3 | Circularly polarized luminescence from organic micro-/nano-structures显示文摘Circularly polarized light exhibits promising applications in future displays and photonic technologies.Circularly polarized luminescence(CPL)from chiral luminophores is an ideal approach to directly generating circularly polarized light,in which the energy loss induced by the circularly polarized filters can be reduced.Among various chiral luminophores,organic micro-/nano-structures have attracted increasing attention owing to the high quantum efficiency and luminescence dissymmetry factor.Herein,the recent progress of CPL from organic micro-/nano-structures is summarized.Firstly,the design principles of CPL-active organic micro-/nano-structures are expounded from the construction of micro-/nano-structure and the introduction of chirality.Based on these design principles,several typical organic micro-/nano-structures with CPL activity are introduced in detail,including self-assembly of small molecules,self-assembly ofπ-conjugated polymers,and self-assembly on micro-/nanoscale architectures.Subsequently,we discuss the external stimuli that can regulate CPL performance,including solvents,pH value,metal ions,mechanical force,and temperature.We also summarize the applications of CPL-active materials in organic light-emitting diodes,optical information processing,and chemical and biological sensing.Finally,the current challenges and prospects in this emerging field are presented.It is expected that this review will provide a guide for the design of excellent CPL-active materials. | Yonging Deng Mengzhu Wang Yanling Zhuang Shujuan Liu Wei Huang Qiang Zhao | 2021 | Light(Science & Applications)2021，10，5： | 1 |
| 4 | 用于偏振成像的液晶微偏振阵列研究进展显示文摘微偏振阵列是分焦平面偏振计的核心元件。相较于纳米线栅阵列,液晶偏振阵列有着设计灵活、工艺简便、性能稳定等独特优势,有望实现高性价比、高精准度的偏振测量与成像。本文综述了近年来国内外科研团队针对液晶微偏振阵列展开的研究,系统阐述了基于宾主型、偏振旋转型和相位延迟型3大类液晶偏振阵列的器件结构和工作原理,不同的液晶排列结构可以实现从单一线偏振到全Stokes矢量的测量和成像,最后讨论了液晶微偏振阵列与偏振探测技术相结合的发展趋势和应用中面临的挑战。 | 张士元 孙子珺 穆全全 彭增辉 刘华 刘畅 | 2022 | 液晶与显示2022，37，3： | 1 |
| 5 | 超表面偏振信息编码显示文摘超表面在光偏振调控方面具有卓越的能力,利用超表面结构的偏振控制实现信息编码与加密成为一种新兴的光学编码技术。本文旨在介绍超表面偏振光学及其在信息加密领域的最新进展。首先介绍对光束偏振态进行整体调控的各类超表面偏振光学元件,包括超表面波片、偏振器和偏振分束器,强调了超表面在偏振操控方面的卓越性能;接着深入介绍基于不同微型超表面偏振光学元件进行的像素化偏振信息编码,包括对近场偏振态空间分布进行逐点编码的马吕斯超表面,以及对远场偏振态进行空间编码的偏振全息和矢量全息超表面;然后阐述近场与远场像素化偏振空间编码超表面在信息隐藏与加密领域的应用示范;最后进行简要总结,并展望超表面偏振信息编码技术的未来发展趋势与应用潜力。 | 胡孟霞 王志强 李向平 邓子岚 | 2023 | 中国激光2023，50，18： | 0 |
| 6 | Neural network assisted high-spatial-resolution polarimetry with non-interleaved chiral metasurfaces显示文摘Polarimetry plays an indispensable role in modern optics.Nevertheless,the current strategies generally suffer from bulky system volume or spatial multiplexing scheme,resulting in limited performances when dealing with inhomogeneous polarizations.Here,we propose a non-interleaved,interferometric method to analyze the polarizations based on a tri-channel chiral metasurface.A deep convolutional neural network is also incorporated to enable fast,robust and accurate polarimetry.Spatially uniform and nonuniform polarizations are both measured through the metasurface experimentally.Distinction between two semblable glasses is also demonstrated.Our strategy features the merits of compactness and high spatial resolution,and would inspire more intriguing design for detecting and sensing. | Chen Chen Xingjian Xiao Xin Ye Jiacheng Sun Jitao Ji Rongtao Yu Wange Song Shining Zhu Tao Li | 2023 | Light(Science & Applications)2023，12，12： | 0 |
| 7 | Snapshot Mueller spectropolarimeter imager显示文摘We introduce an imaging system that can simultaneously record complete Mueller polarization responses for a set of wavelength channels in a single image capture.The division-of-focal-plane concept combines a multiplexed illumination scheme based on Fourier optics together with an integrated telescopic light-field imaging system.Polarization-resolved imaging is achieved using broadband nanostructured plasmonic polarizers as functional pinhole apertures.The recording of polarization and wavelength information on the image sensor is highly interpretable.We also develop a calibration approach based on a customized neural network architecture that can produce calibrated measurements in real-time.As a proof-of-concept demonstration,we use our calibrated system to accurately reconstruct a thin film thickness map from a four-inch wafer.We anticipate that our concept will have utility in metrology,machine vision,computational imaging,and optical computing platforms. | Tianxiang Dai Thaibao Phan Evan W.Wang Soonyang Kwon Jaehyeon Son Myungjun Lee Jonathan A.Fan | 2023 | Microsystems & Nanoengineering2023，9，5： | 0 |
| 8 | Gate voltage control of helicity-dependent photocurrent and polarization detection in(Bi_(1-x)Sb_(x))_(2)Te_(3)topological insulator thin films显示文摘Optical helicity provides us with an effective means to control the helicity-dependent photocurrent in the spinmomentum-locked surface states of topological insulators(TIs).Also,the TIs show potential in polarization detection as an intrinsic solid-state optical chirality detector for easier integration and fabrication.However,the complex photoresponses with the circular photogalvanic effect,the linear photogalvanic effect,and the photon drag effect in the TIs prevent them from direct chirality detection of the elliptically polarized light.Here,by fitting with the theoretical models to the measured photocurrents,the microscopic origin of different components of the helicity-dependent photocurrent has been demonstrated.We show a comprehensive study of the helicitydependent photocurrent in(Bi_(1-x)Sb_(x))_(2)Te_(3)thin films of different thicknesses as a function of the light incident angle and the gate-tuned chemical potential.The observation of the light incident angle dependence of the helicitydependent photocurrent provides us with a polarization detection strategy using a TI thin film without the use of any additional optical elements,and the detection accuracy can be enhanced by gate tuning.Additionally,the Stokes parameters can be extracted by arithmetic operation of photocurrents measured with different incident angles and gating voltages for complete characterization of the polarization states of a light beam.Using this means,we realize the polarization detection and the Stokes parameters analysis with a single device.Our work provides an alternative solution to develop miniaturized intrinsic polarization-sensitive photodetectors. | SHENZHONG CHEN JINLING YU XIYU HONG KEJING ZHU YONGHAI CHEN SHUYING CHENG YUNFENG LAI KE HE QIKUN XUE | 2023 | Photonics Research2023，11，11： | 0 |
| 9 | Large-area ultracompact pixelated aluminumwire-grid-based metamaterials for Vis-NIR full-Stokes polarization imaging显示文摘The study of pixelated metamaterials that integrate both the functions of linear and circular polarization filters is rapidly growing due to the need for full-Stokes polarization imaging. However, there is a lack of large-area, ultracompact pixelated full-Stokes metamaterials with excellent performance, especially circular polarization filters with a high extinction ratio, a broad operating bandwidth, and a low-cost, high-quality, efficient manufacturing process, which limits the practical applications of pixelated full-Stokes metamaterials. In this study, we propose a universal design and fabrication scheme for large-area, ultracompact pixelated aluminum wire-grid-based metamaterials used in Vis-NIR full-Stokes polarization imaging. The aluminum wire-grid was designed as a linear polarization filter with an average linear polarization extinction ratio of 36,000 and a circular polarization filter with an average circular polarization extinction ratio of 110 in Vis-NIR. A large-area, ultracompact 320 × 320pixelated aluminum wire-grid-based full-Stokes metamaterial was fabricated using nanoimprint lithography and nano transfer printing with the advantages of low cost and high efficiency. This metamaterial was used to achieve full-Stokes polarization imaging with errors within 8.77%, 12.58%, 14.04%, and 25.96% for Stokes parameters S_(0), S_(1), S_(2), and S_(3), respectively. The inversion errors of the compensated Stokes parameters can be reduced to0.21%, 0.21%, 0.42%, and 1.96%, respectively. | YUANYI FAN JINKUI CHU RAN ZHANG CHUANLONG GUAN JIANYING LIU | 2023 | Photonics Research2023，11，11： | 0 |
| 10 | 偏振集成红外光电探测器研究进展与应用显示文摘偏振集成探测器具有体积小、重量轻、结构紧凑,并且无需图像配准对动态目标同时同地同源探测与识别的优势。本文主要介绍了偏振集成光电探测器单元器件、线列焦平面、面阵焦平面的研究进展,分析了光栅结构设计与仿真、亚微米偏振光栅制备、集成与测试、偏振图像数据重构等获得高消光比偏振集成探测器的关键技术,最后介绍了偏振成像针对无人机、伪装卡车、地雷、海面舰船、面部识别、无人驾驶道路识别、海面漏油检测及医疗检测等方面的典型应用。 | 周建 周易 倪歆玥 王芳芳 应翔霄 黄敏 徐志成 陈凡胜 刘云猛 陈建新 | 2023 | 光电工程2023，50，5： | 0 |
| 11 | 虾蛄眼视觉系统特点及研究进展显示文摘脚足类动物(虾蛄)是一群掠食性海洋甲壳类动物,它们的眼睛拥有动物界中最复杂的彩色视觉系统,在视觉方面具有先天优势。凭借其丰富的光谱敏感度、线偏振以及圆偏振识别等诸多优点,受到广泛关注。总结虾蛄的复眼结构及功能,同时介绍虾蛄眼的仿生研究及相关应用,最后对虾蛄眼仿生应用领域面临的挑战及有待进一步拓展的方向进行展望。 | 许明珠 孙晓婕 曹焱 张钰 高秀敏 | 2021 | 光学仪器2021，43，2： | 0 |
| 12 | 光学偏振成像技术的研究、应用与进展显示文摘偏振成像技术作为一种新型的光学成像技术,可以实现抑制背景噪声、提高探测距离、获取目标细节特征和识别伪装目标等功能。由于成像空间维度的不同,偏振二维成像和偏振三维成像在不同领域中具有良好的应用前景。文中从偏振光的表示与传播方式入手,先后对偏振成像系统、偏振二维成像技术、偏振三维成像技术和基于超表面偏振器件的偏振探测及成像的研究展开综述。首先,根据偏振成像系统结构的不同,偏振成像系统可分为分时型、分振幅型、分孔径型和分焦平面型四种,并对以上偏振成像系统分别进行详细介绍和比较分析。其次,阐述了基于图像增强技术的偏振二维成像。图像增强技术分为偏振差分算法和图像融合两种。对于偏振三维成像,根据所处理反射光成分的不同,分为基于镜面反射光和漫反射光的偏振三维成像。综述了三维形貌重建过程中天顶角和方位角多值性问题的解决办法。为了高效准确地获取偏振信息,基于超表面结构的偏振器件成为当前研究的热点。进一步介绍了基于超表面偏振器件的偏振探测及成像技术。最后,总结全文并对偏振成像技术的发展前景进行展望。 | 李智渊 翟爱平 冀莹泽 李国辉 王东 王文艳 石林林 冀婷 刘飞 崔艳霞 | 2023 | 红外与激光工程2023，52，9： | 0 |
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