27 August 2008 Dual-channel spectral imaging with spectral zooming capability
Author Affiliations +
Abstract
In this paper, a dual-channel spectral imaging system with agile spectral band access and spectral bandwidth tuning capability is presented. A diffractive grating is used as the spectral dispersion element for the dual-channel spectral imaging system. A 4-f spectral filtering channel using an adjustable slit is set up at the first diffraction order of the grating to realize coarse spectral band selection. An acousto-optic tunable filter selectively filters the spectrum of the non-dispersed zero order to realize fine spectral imaging. The spectral zooming function is achieved without increasing spectral frame number facilitating real-time spectral imaging operation. Feasibility of the spectral imaging has been demonstrated through preliminary experiments. Minimum 6 nm spectral resolution and 1.2° field of view have been achieved. The real-time spectral imaging capable of wide spectral band operation without loosing desired fine spectral capability is particularly useful for a variety of defense, medical, and environmental monitoring applications.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bing Chen, Bing Chen, Michael R. Wang, Michael R. Wang, Jame J. Yang, Jame J. Yang, } "Dual-channel spectral imaging with spectral zooming capability", Proc. SPIE 7086, Imaging Spectrometry XIII, 70860M (27 August 2008); doi: 10.1117/12.800481; https://doi.org/10.1117/12.800481
PROCEEDINGS
8 PAGES


SHARE
Back to Top