Principle and analysis of the moving-optical-wedge interferometer
Applied Optics, Vol. 47, Issue 13, pp. 2186-2191 (2008)
http://dx.doi.org/10.1364/AO.47.002186
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Abstract
A new type of interferometer, the moving-optical-wedge interferometer, is presented, and its principle and properties are studied. The novel interferometer consists of one beam splitter, two flat fixed mirrors, two fixed compensating plates, one fixed optical wedge, and one moving optical wedge. The optical path difference (OPD) as a function of the displacement of the moving optical wedge from the zero path difference position is accomplished by the straight reciprocating motion of the moving optical wedge. A large physical shift of the moving optical wedge corresponds to a very short OPD value of the new interferometer if the values of the wedge angle and the refractive index of the two optical wedges are given properly. The new interferometer is not so sensitive to the velocity variation of the moving optical wedge and the mechanical disturbances compared with the Michelson interferometer, and it is very applicable to low-spectral-resolution application for any wavenumber region from the far infrared down to the ultraviolet.
© 2008 Optical Society of America
OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(260.3160) Physical optics : Interference
(300.6190) Spectroscopy : Spectrometers
ToC Category:
Instrumentation, Measurement, and Metrology
History
Original Manuscript: January 9, 2008
Revised Manuscript: February 28, 2008
Manuscript Accepted: March 20, 2008
Published: April 22, 2008
Citation
Qinghua Yang, Renkui Zhou, and Baochang Zhao, "Principle and analysis of the moving-optical-wedge interferometer," Appl. Opt. 47, 2186-2191 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-13-2186
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