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

doi:10.3390/s21072289

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Snapshot imaging spectrometer based on pixel-level filter array (PFA)
	Y. Xie; C. Liu; S. Liu; W. Song and X. Fan
刊名	Sensors
	2021
卷号	21 期号:7
ISSN号	14248220
DOI	10.3390/s21072289
英文摘要	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.
URL标识	查看原文
内容类型	期刊论文
源URL	[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).