Wang Yifan, Escuti Michael J, Kudenov Michael W
Opt Express. 2019 May 27;27(11):15444-15455. doi: 10.1364/OE.27.015444.
In this paper, we present the design and experimental demonstration of a snapshot imaging spectrometer based on channeled imaging spectrometry (CIS) and channeled imaging polarimetry (CIP). Using a geometric phase microlens array (GPMLA) with multiple focal lengths, the proposed spectrometer selects wavelength components within its designed operating waveband of 450-700 nm. Compared to other snapshot spectral imagers, its key components are especially suitable for roll-to-roll (R2R) rapid fabrication, which gives the spectrometer potential for low-cost mass production. The principles and proof-of-concept experimental system of the sensor are described in detail, followed by lab validation and outdoor measurement results which demonstrate the sensor's ability to resolve spectral and spatial contents under both experimental and natural illumination conditions.
在本文中，我们展示了一种基于通道成像光谱法（CIS）和通道成像偏振法（CIP）的快照成像光谱仪的设计与实验演示。所提出的光谱仪使用具有多个焦距的几何相位微透镜阵列（GPMLA），在其设计的450 - 700 nm工作波段内选择波长成分。与其他快照光谱成像仪相比，其关键组件特别适合卷对卷（R2R）快速制造，这赋予了该光谱仪低成本大规模生产的潜力。详细描述了该传感器的原理和概念验证实验系统，随后是实验室验证和户外测量结果，这些结果证明了该传感器在实验和自然光照条件下分辨光谱和空间内容的能力。
