Hyperspectral-dual spectral region imaging spectrometer

Details Hyperspectral-dual spectral region imaging spectrometer Hyperspectral-dual spectral region imaging spectrometer

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5563..156h&link_type=abstract

Image Reconstruction from Incomplete Data III. Edited by Bones, Philip J.; Fiddy, Michael A.; Millane, Rick P. Proceedings of

Computer Science

1

Scientific paper

A temporally and spatially non-scanning imaging spectrometer covering two separate spectral bands in the visible region using computed tomographic imaging techniques is described. The computed tomographic techniques allows for the construction of a three dimensional hyperspectral data cube (x, y, λ) from the two dimensional input in a single frame time. A computer generated holographic dispersive grating is used to disperse the incoming light into several diffraction orders on a focal plane composed of interwoven pixels independently sensitive to the two bands of interest. Separating the input of the two pixel types gives co-registered output between the two bands and overcomes the limitation of overlapping orders. The proof of concept in the visible is presented using a commercially available camera and the extension to the infrared is proposed.

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