Spectro-polarimetric detection enabled by multidimensional metasurface with quasi-bound states in the continuum
利用连续体中准束缚态的多维超表面实现光谱偏振探测
準連続体中の準束縛状態を持つ多次元メタ表面によって実現された分光偏光検出
계속체 내 준결합 상태를 가진 다차원 메타표면에 의한 분광-편광 검출 가능
Detección espectropolarimétrica habilitada por metasuperficies multidimensionales con estados cuasi-ligados en el continuo
Détection spectro-polarimétrique rendue possible par une métasurface multidimensionnelle avec des états quasi-liaison dans le continuum
Спектрополяриметрическое обнаружение, осуществляемое с помощью многомерной метаповерхности с квазисвязанными состояниями в сплошности
Haoyang He ¹, Fangxing Lai ², Yan Zhang ¹, Xue Zhang ¹, Chenyi Tian ¹, Xin Li ¹, Yongtian Wang ¹, Shumin Xiao ², Lingling Huang ¹
¹ Beijing Engineering Research Center of Mixed Reality and Advanced Display, Key Laboratory of Photoelectronic Imaging Technology and System of Ministry of Education of China, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
中国 北京 北京理工大学光电学院 光电成像技术与系统教育部重点实验室 北京市混合现实与新型显示工程技术研究中心
² Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Harbin Institute of Technology, Shenzhen 518055, China
中国 深圳 哈尔滨工业大学 微纳光电信息系统理论与技术工信部重点实验室
Spectral and polarization information are crucial for characterizing the composition and surface morphology of various materials. However, traditional spectral and polarization detection systems are hampered by bulky, single-function optical components and complex configurations, hindering the portable, low-cost, and multifunctional applications in compact, field-deployable devices.
In this study, we introduce a miniaturized near-infrared (NIR) spectro-polarimetric detection device utilizing a group of meta-spectro-polarimeters (MSPs), which support quasi-bound states in the continuum (Q-BIC) under specific incident polarization, significantly reducing the spatial footprint and improving the design scalability.
By precisely adjusting the high quality resonances and polarization sensitive radiation behavior of MSPs, we not only extend the number of spectral waveband to 20 that greatly surpassing traditional division-of-amplitude or division-of-time schemes, but also ensure an average spectral resolution power (SRP, λ/Δλ) of 71.03.
We achieve high accuracy multidimensional spectro-polarization detection, resulting in the angle of linear polarization (AoLP) with an average error of 4.67° and precise spectrum reconstruction in a machine-learning free way, avoiding the huge computational power and energy during the training process.
Additionally, we demonstrate the high spectro-polarimetric imaging performance of our system in different experimental scene. Such multidimensional detection device holds great promise for adoption in fields like aerospace, chemical detection, machine vision, and so on.
