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Proceedings Paper

Liquid crystal Fourier transform spectrometer
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Paper Abstract

A new high throughput imaging spectrometer is described that utilizes a digitally switched polarizing interferometer to sample the complex autocorrelation of the input spectrum. Using a single filter stage and high speed digital liquid crystal switches, the spectrometer can provide rapid measurements of power spectra using a simple, easily driven, light efficient structure. The spectrometer is well suited to visible/near infrared operation, due to its use of path-length differences in crystals, rather than free space path length differences. The spectrometer provides accurate and stable steps in path length difference from zero to hundreds of waves.

Paper Details

Date Published: 31 July 1998
PDF: 11 pages
Proc. SPIE 3384, Photonic Processing Technology and Applications II, (31 July 1998); doi: 10.1117/12.317657
Show Author Affiliations
Gary D. Sharp, Boulder Nonlinear Systems, Inc. (United States)
Ping Wang, Boulder Nonlinear Systems, Inc. (United States)
Steven A. Serati, Boulder Nonlinear Systems, Inc. (United States)
Teresa K. Ewing, Boulder Nonlinear Systems, Inc. (United States)


Published in SPIE Proceedings Vol. 3384:
Photonic Processing Technology and Applications II
Andrew R. Pirich; Michael A. Parker, Editor(s)

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