Adaptive imaging spectrometer in a time-domain filtering architecture

作     者：Jiao, Y Bhalotra, SR Kung, HL Miller, DAB 

作者机构：Stanford Univ Edward L Ginzton Lab Stanford CA 94305 USA 

出 版 物：《OPTICS EXPRESS》 (Opt. Express)

年 卷 期：2003年第11卷第17期

页      面：1960-1965页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：.Fourier transform transforms overlapping imaging spectrometer interferogram Michelson interferometer spectral signature time-domain filtering reference waveforms discriminate between highly discrimination algorithm 

摘      要：We demonstrate an imaging spectrometer with 30 nm resolution that utilizes a novel time-domain filtering architecture. The architecture is based on a pixel by pixel integration of the interferogram signal mixed with reference waveforms. The system can be adapted in real time to discriminate between LED sources of different wavelengths, perform signal processing on the spectra, as well as discriminate between highly overlapping, broadband spectral features in a scene illuminated by a tungsten lamp. Unlike a conventional spectral signature discrimination system, which needs a dedicated computation subsystem running a discrimination algorithm, the time-domain filtering architecture embeds much of the computation in the filtering, which will aid the design of integrated miniaturized spectral signature discrimination systems. (C) 2003 Optical Society of America.