Design of broadband-optimized computer-generated hologram dispersers for the computed-tomography imaging spectrometer

Curtis Earl Volin; Michael R. Descour; Eustace L. Dereniak

doi:10.1117/12.453361

17 January 2002 Design of broadband-optimized computer-generated hologram dispersers for the computed-tomography imaging spectrometer

Curtis Earl Volin, Michael R. Descour, Eustace L. Dereniak

Author Affiliations +

Proceedings Volume 4480, Imaging Spectrometry VII; (2002) https://doi.org/10.1117/12.453361
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

This paper describes an algorithm based on the singular-value decomposition that converges to a solution for a computer-generated-hologram disperser from a random-phase starting diffuser. In this paper, we report on the application of this algorithm to the design of two-dimensional, surface-relief CGH dispersers for use in the Computed-Tomography Imaging Spectrometer (CTIS). The designed CGH's produce desired diffraction images at five wavelengths through a 1:1.67 wavelength band. Performance results are presented for a demonstration CGH designed by the SVD algorithm and fabricated in GaAs for use in the mid-wave infrared CTIS.

Citation Download Citation

Curtis Earl Volin, Michael R. Descour, and Eustace L. Dereniak "Design of broadband-optimized computer-generated hologram dispersers for the computed-tomography imaging spectrometer", Proc. SPIE 4480, Imaging Spectrometry VII, (17 January 2002); https://doi.org/10.1117/12.453361

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