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Fourier Transform Near-Infrared Spectrometer Using a Corner-Cube Integrated Prism Scanning Interferometer

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Abstract:

This paper describes a Fourier transform (FT) near-infrared spectrometer that uses an integrated prism scanning interferometer whose optical paths are stabilized by corner cubes. A combination of corner cubes and a retroreflection mirror, which is sometimes used in the conventional interferometer for FT spectrometers, is adopted and adapted to the integrated prism scanning interferometer through a special design. Without any degradation of spectroscopic properties, the optical path in the interferometer is highly stabilized and the moving distance of the stage is halved. These advantages provide a robust and portable FT spectrometer for field use.

Keywords: CORNER CUBE; FOURIER TRANSFORM SPECTROMETRY; INTERFEROMETER; LASER DIODE; NEAR INFRARED; PRISM; REFRACTIVE INDEX MATCHING LIQUID

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702042641353

Affiliations: NTT Microsystem Integration Laboratories, Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan

Publication date: December 1, 2004

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