Snapshot imaging spectrometer based on pixel-level filter array (PFA)

doi:10.3390/s21072289

CIOMP OpenIR

	Snapshot imaging spectrometer based on pixel-level filter array (PFA)
	Y. Xie; C. Liu; S. Liu; W. Song and X. Fan
	2021
发表期刊	Sensors
ISSN	14248220
卷号	21 期号:7
摘要	Snapshot spectral imaging technology plays an important role in many fields. However, most existing snapshot imaging spectrometers have the shortcomings of a large volume or heavy computational burden. In this paper, we present a novel snapshot imaging spectrometer based on the pixel-level filter array (PFA), which can simultaneously obtain both spectral and spatial information. The system is composed of a fore-optics, a PFA, a relay lens, and a monochromatic sensor. The incoming light first forms an intermediate image on the PFA through the fore-optics. Then, the relay lens reimages the spectral images on the PFA onto the monochromatic sensor. Through the use of the PFA, we can capture a three-dimensional (spatial coordinates and wavelength) datacube in a single exposure. Compared with existing technologies, our system possesses the advantages of a simple implementation, low cost, compact structure, and high energy efficiency by removing stacked dispersive or interferometric elements. Moreover, the characteristic of the direct imaging mode ensures the low computational burden of the system, thus shortening the imaging time. The principle and design of the system are described in detail. An experimental prototype is built and field experiments are carried out to verify the feasibility of the proposed scheme. 2021, MDPI AG. All rights reserved.
DOI	10.3390/s21072289
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收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65640
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. Xie,C. Liu,S. Liu,et al. Snapshot imaging spectrometer based on pixel-level filter array (PFA)[J]. Sensors,2021,21(7).
APA	Y. Xie,C. Liu,S. Liu,&W. Song and X. Fan.(2021).Snapshot imaging spectrometer based on pixel-level filter array (PFA).Sensors,21(7).
MLA	Y. Xie,et al."Snapshot imaging spectrometer based on pixel-level filter array (PFA)".Sensors 21.7(2021).

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