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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 23, Iss. 2 — Jan. 15, 1984
  • pp: 269–273

Fourier transform spectrometer with a self-scanning photodiode array

Takayuki Okamoto, Satoshi Kawata, and Shigeo Minami  »View Author Affiliations


Applied Optics, Vol. 23, Issue 2, pp. 269-273 (1984)
http://dx.doi.org/10.1364/AO.23.000269


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Abstract

A Fourier transform spectrometer with no mechanical moving parts is described. The interferogram is generated spatially by a triangle common-path interferometer and is detected by a self-scanning photodiode array. The spectrum is reconstructed by fast Fourier transform in a microcomputer system. Since no moving part is used and a common-path interferometer is employed for simple, stable, and easy alignment, this spectrometer may be built in a relatively small size and with moderate cost. The self-scanning photodiode array as a multichannel detector may lead this spectrometer to the application to time-resolved spectroscopy. The optical throughput is much larger than that of a multichannel dispersion-type spectrometer, because in the system neither a slit nor an aperture is necessary. The emission spectra of a low pressure mercury lamp and a LED are shown to demonstrate the system performance.

© 1984 Optical Society of America

History
Original Manuscript: August 22, 1983
Published: January 15, 1984

Citation
Takayuki Okamoto, Satoshi Kawata, and Shigeo Minami, "Fourier transform spectrometer with a self-scanning photodiode array," Appl. Opt. 23, 269-273 (1984)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-23-2-269

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