THRIFTI: Tomographic hyperspectral remote imaging fourier transform interferometer
Document Type
Conference Proceeding
Publication Date
12-1-1998
Abstract
Hyperspectral imaging spectrometers (HSIs) utilizing a Sagnac interferometer are throughput-limited if a slit is employed in their designs. This paper describes the Tomographic Hyperspectral Remote Imaging Fourier Transform Interferometer (THRIFTI) optical design. THRIFTI is capable of producing spectral autocorrelation fringe modulation over an image plane defined by a two-dimensional CCD array without the throughput disadvantage encountered by the Sagnac-based imaging spectrometers that incorporate a slit. This approach is utilized to recapture the full spatial-spectral characteristics of an image hypercube via tomography or linear deconvolution. In addition to its large throughput, THRIFTI is robust and simple to construct. The optical design of THRIFTI is discussed and the first experimental results are presented.
Publication Title
Proceedings of SPIE - The International Society for Optical Engineering
Recommended Citation
Slough, W.,
Rafert, J.,
Rohde, C.,
&
Hart, C.
(1998).
THRIFTI: Tomographic hyperspectral remote imaging fourier transform interferometer.
Proceedings of SPIE - The International Society for Optical Engineering,
3393, 207-216.
http://doi.org/10.1117/12.317685
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/12093