Hybrid sampling approach for imaging Fourier-transform spectrometry
Applied Optics, Vol. 46, Issue 35, pp. 8482-8487 (2007)
http://dx.doi.org/10.1364/AO.46.008482
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Abstract
A new approach to interferogram sampling is demonstrated for Fourier-transform spectrometry. Sampling of the infrared channel is triggered at equidistant optical path differences while samples are time-referenced with a high-resolution digital clock. This hybrid method exploits the advantages of both time and position-sampling techniques. It minimizes the dataload while allowing a postcorrection scheme to remove sampling errors. It is therefore highly adapted to imaging spectrometers designed for massively parallel spatial sampling. Also, this technique is particularly interesting for spectrometers equipped with an integrating detector, such as a CCD camera, since it can account for the inevitable delay caused by camera integration.
© 2007 Optical Society of America
OCIS Codes
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms
ToC Category:
Spectroscopy
History
Original Manuscript: August 24, 2007
Manuscript Accepted: October 12, 2007
Published: December 7, 2007
Citation
Simon A. Roy, Jérôme Genest, and Philippe Giaccari, "Hybrid sampling approach for imaging Fourier-transform spectrometry," Appl. Opt. 46, 8482-8487 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-35-8482
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