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Miniaturization of step mirrors in a static Fourier transform spectrometer: theory and simulation |
JOSA B, Vol. 28, Issue 1, pp. 128-133 (2011)
http://dx.doi.org/10.1364/JOSAB.28.000128
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Abstract
The diffraction at mirror facets restricts the size of step mirrors for static step-mirror-based Fourier transform spectrometers. This paper discusses the miniaturization of these step mirrors and proposes a quasiperiodic approximation of Fresnel diffraction to analyze the diffraction effect. Noise caused by diffraction is classified into approximation noise and edge noise. The edge-enlarge method is developed to reduce edge noise. This method can reduce mirror facet width to less than 30 times the longest wavelength to be studied. Simulation results are given.
© 2011 Optical Society of America
OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(300.6190) Spectroscopy : Spectrometers
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms
ToC Category:
Spectroscopy
History
Original Manuscript: June 22, 2010
Revised Manuscript: October 5, 2010
Manuscript Accepted: November 3, 2010
Published: December 20, 2010
Citation
Cong Feng, Bo Wang, Zhongzhu Liang, and Jingqiu Liang, "Miniaturization of step mirrors in a static Fourier transform spectrometer: theory and simulation," J. Opt. Soc. Am. B 28, 128-133 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-1-128
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