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Proceedings Paper

Compact snapshot birefringent imaging Fourier transform spectrometer
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Paper Abstract

The design and implementation of a compact multiple-image Fourier transform spectrometer (FTS) is presented. Based on the multiple-image FTS originally developed by A. Hirai, the presented device offers significant advantages over his original implementation. Namely, its birefringent nature results in a common-path interferometer which makes the spectrometer insensitive to vibration. Furthermore, it enables the potential of making the instrument ultra-compact, thereby improving the portability of the sensor. The theory of the birefringent FTS is provided, followed by details of its specific embodiment. A laboratory proof of concept of the sensor, designed and developed at the Optical Detection Lab, is also presented. Spectral measurements of laboratory sources are provided, including measurements of light-emitting diodes and gas-discharge lamps. These spectra are verified against a calibrated Ocean Optics USB2000 spectrometer. Other data were collected outdoors, demonstrating the sensor's ability to resolve spectral signatures in standard outdoor lighting and environmental conditions.

Paper Details

Date Published: 13 August 2010
PDF: 11 pages
Proc. SPIE 7812, Imaging Spectrometry XV, 781206 (13 August 2010); doi: 10.1117/12.864703
Show Author Affiliations
Michael W. Kudenov, College of Optical Sciences, The Univ. of Arizona (United States)
Eustace L. Dereniak, College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 7812:
Imaging Spectrometry XV
Sylvia S. Shen; Paul E. Lewis, Editor(s)

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