Self-Powered Filterless On-Chip Full-Stokes Polarimeter

Chen, Fang; Li, Junze; Zhou, Bing; Li, Dehui

doi:10.1021/acs.nanolett.1c01729

Cited by 25 publications

(25 citation statements)

References 43 publications

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“…Our polarimeter shows a good accuracy compared with the literatures (0.050, 0.048 and 0.067 as the minimum deviations of s1, s2 and s3). [ 45 , 46 , 47 , 48 , 49 ] Also, the polarimeter shows a high sensitivity and a wide dynamic range. Moreover, it is a self‐powered system since no voltage is applied to the photodetectors.…”

Section: Resultsmentioning

confidence: 99%

High Performance Polarization‐Resolved Photodetectors Based on Intrinsically Stretchable Organic Semiconductors

et al. 2022

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Polarization‐sensitive photodetectors based on anisotropic semiconductors sense both the intensity and polarization state information without extra optical components. Here, a self‐powered organic photodetector (OPD) composed of intrinsically stretchable polymer donor PNTB6‐Cl and non‐fullerene acceptor Y6 is reported. The PNTB6‐Cl:Y6 photoactive film accommodates a remarkable 100% strain without fracture, exhibiting a high optical anisotropy of 1.8 after strain alignment. The resulting OPD not only shows an impressive faint‐light detection capability (high spectral responsivity of 0.45 A W−1 and high specific detectivity of 1012 Jones), but also has a high anisotropic responsivity ratio of 1.42 under the illumination of parallel and traversed polarized light. To the best of the authors’ knowledge, both the detector performance and polarization features are among the best‐performing OPDs and polarization‐sensitive photodetectors. As a proof‐of‐concept, polarization‐sensitive OPDs are also utilized to set up a polarimetric imaging system and full‐Stokes polarimeter. This work explores the potential of highly stretchable organic semiconductors for state‐of‐art polarization imaging and spectroscopy applications.

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Section: Resultsmentioning

confidence: 99%

High Performance Polarization‐Resolved Photodetectors Based on Intrinsically Stretchable Organic Semiconductors

et al. 2022

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“…In fact, most of the previously reported works confuse the definitions of the detection sensitivity and accuracy, where the detection sensitivity relies on the optical anisotropy and chirality of CMs, while the detection accuracy depends on the detection sensitivity and the system errors. In sharp contrast to the traditional method, ,,,− , the DL approach can completely eliminate the negative influence from the fabrication errors in the traditional method and give an accurate prediction as long as the input data (i.e., the data sets { ÎŜ } i ) have enough of a stable difference between each other. This data difference highly depends on the anisotropy and chirality of CMs and also the measured system.…”

Section: Discussionmentioning

confidence: 99%

Highly Precise and Broadband Full-Stokes Polarimeter Based on a Deep Learning Algorithm

et al. 2023

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Recent developments in nanophotonics enable the practical realization of ultracompact full-Stokes polarimeters and imaging devices based on the well-defined polarization-sensitive structures of subwavelength size. However, the resonant feature of building blocks and the limited ability of the current processing technology greatly limit their detection accuracy and working waveband. Herein, we experimentally demonstrate a highly precise and broadband full-Stokes polarimeter based on the high-performance dielectric chiral shells (DCSs) and the deep learning (DL) algorithm. The large-area dielectric chiral metasurfaces (DCMs) fabricated by depositing Si on the self-assembled microsphere monolayer own a large transmittance, strong chirality, and anisotropy in the visible waveband, which enable the effective perception of the polarization state of light. The Stokes parameters are successfully detected by measuring several transmittances from DCSs with different rotation angles, i.e., Î, and then analyzing with the pre-established mapping relationship between the Stokes parameters Ŝ and the recorded transmittance Î based on the DL algorithm, i.e., Ŝ = f(Î). In contrast to the traditional polarimeters, the detection accuracy based on the DL approach seems insensitive to the fabrication errors. A mean square error (MSE) of smaller than 0.5% at 760.06 nm was recorded, and an averaged MSE of less than 4% for Stokes parameters over a broad waveband from 400 to 840 nm was obtained, although the optical anisotropy and chirality of DCMs own a strong dispersion feature. The small MSE in a broad waveband, together with the easily accessing DCMs, make our polarimeter as the most potential candidate for future applications, such as the color polarization imaging devices and the ultraviolent polarimeter.

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“…To solve the problems, several polarization-sensitive photodetectors have been investigated using natural anisotropic two-dimensional (2D) materials with low crystal symmetry, such as black phosphorus (BP), ReS 2 , GeSe, and van der Waals (vdW) interfaces (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18). However, these photodetectors need additional power meters to decouple the illumination power-polarization relationship.…”

Section: Introductionmentioning

confidence: 99%

Twisted black phosphorus–based van der Waals stacks for fiber-integrated polarimeters

et al. 2022

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The real-time, in-line analysis of light polarization is critical in optical networks, currently suffering from complex systems with numerous bulky opto-electro-mechanical elements tandemly arranged along the optical path. Here, we design and fabricate a fiber-integrated polarimeter by vertically stacking three photodetection units based on six-layer van der Waals materials, including one bismuth selenide (Bi 2 Se 3 ) layer for power calibration, two twisted black phosphorus (BP) layers for polarization detection, and three hexagonal boron nitride (hBN) layers for encapsulation. The self-power-calibrated, self-driven, and unambiguous detection of both linearly polarized (LP) and circularly polarized (CP) light is realized by the broken symmetry–induced linear photogalvanic effects (LPGEs) and circular photogalvanic effects (CPGEs) in the two BP units. Moreover, the device enables single-pixel polarimetric imaging to acquire spatial polarization information. The ultracompact device structure, free from external optical and mechanical modules, may inspire the development of miniaturized optical and optoelectronic systems.

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Self-Powered Filterless On-Chip Full-Stokes Polarimeter

Cited by 25 publications

References 43 publications

High Performance Polarization‐Resolved Photodetectors Based on Intrinsically Stretchable Organic Semiconductors

High Performance Polarization‐Resolved Photodetectors Based on Intrinsically Stretchable Organic Semiconductors

Highly Precise and Broadband Full-Stokes Polarimeter Based on a Deep Learning Algorithm

Twisted black phosphorus–based van der Waals stacks for fiber-integrated polarimeters

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