6 December 2004 Imaging spectrometry at visible and infrared wavelengths using image replication
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Abstract
We describe a new filter that simultaneously achieves spectral filtering and image replication to yield a two-dimensional, snapshot spectral imager. Filtering is achieved by spectral demultiplexing; that is without rejection of light; so optical throughput efficiency is, in principle, unity. The principle of operation can be considered as a generalisation of the Lyot filter to achieve multiple bandpasses. We report on the design and experimental implementation of an eight-band system for use in the visible and the design of an eight-band long-wave infrared system.
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Andrew R. Harvey, David W. Fletcher-Holmes, Sean S. Kudesia, Ciaran Beggan, "Imaging spectrometry at visible and infrared wavelengths using image replication", Proc. SPIE 5612, Electro-Optical and Infrared Systems: Technology and Applications, (6 December 2004); doi: 10.1117/12.580059; https://doi.org/10.1117/12.580059
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