Long‐Range Disorder MetaSurface Enabled High‐Performance One‐Shot Ultraviolet Full‐Stokes Polarimeter

The rapidly‐developed nanophotonics enable the realization of highly‐precise, ultra‐compact full Stokes polarimeters. However, realizing large‐area well‐designed structures with complex chiral morphology and subwavelength size is still a challenge to the current micro/nano‐engineering technology. He...

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Vydáno v:	Laser & photonics reviews Ročník 19; číslo 1
Hlavní autoři:	Huang, Shanshan, Xian, Shilin, Peng, Jialong, Yang, Xiu, Du, Jinglei, Hou, Yidong
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Weinheim Wiley Subscription Services, Inc 01.01.2025
Témata:	Anisotropy Artificial neural networks chiral shells Chirality deep‐learning algorithm Error detection full‐stokes polarimeters microsphere lithography Polarimeters Stokes parameters Systems stability ultraviolet chiral metamaterials
ISSN:	1863-8880, 1863-8899
On-line přístup:	Získat plný text
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Popis
Shrnutí:	The rapidly‐developed nanophotonics enable the realization of highly‐precise, ultra‐compact full Stokes polarimeters. However, realizing large‐area well‐designed structures with complex chiral morphology and subwavelength size is still a challenge to the current micro/nano‐engineering technology. Here, one high‐performance, ultra‐compact, and one‐shot full‐Stokes polarimeters in the ultraviolet waveband for the first time based on the long‐range disorder chiral shells fabricated by the micro‐sphere lithography are experimentally demonstrated. This chiral–shell monolayer owns strong and distinct optical chirality and anisotropy between the shells in adjacent micro‐domains and thus leads to different photo‐electric responses to the incident polarized lights for the photodetectors placed underneath. Through employing the residual convolutional neural network to extract the Stokes parameter Ŝ$\hat{S}$, a small detection averaged mean square error (MSE) of <0.5% from 316 nm to 410 nm is realized, and the minimum MSEs at 361 nm can reach recorded values of ≈0.02% (S1${{S}_1}$), 0.017% (S2${{S}_2}$), and 0.014% (S3${{S}_3}$). The influence of exposure time and pixel number, and the system stability are systematically investigated. This work brings new inspiration for the disorder structures based on Bottom‐Up methods, high‐performance polarimeters, and polarization imaging devices. Highly precise one‐shot full‐Stokes ultraviolet polarimeters are first demonstrated based on the long‐range disorder chiral shells realized by the microsphere lithography. The distinct optical properties of shells in different microdomains lead to distinct photo‐electric responses for charge coupled device (CCD) pixels placed underneath. The recorded detection MSEs of 0.02% (S1${{S}_1}$), 0.017% (S2${{S}_2}$), and 0.014% (S3${{S}_3}$) are realized with the AI algorithms.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14
ISSN:	1863-8880 1863-8899
DOI:	10.1002/lpor.202400784