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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 22, Iss. 23 — Dec. 1, 1997
  • pp: 1799–1801

Fourier-transform spectroscopy using liquid-crystal technology

David J. Funk and David S. Moore  »View Author Affiliations


Optics Letters, Vol. 22, Issue 23, pp. 1799-1801 (1997)
http://dx.doi.org/10.1364/OL.22.001799


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Abstract

We report the use of a ferroelectric liquid-crystal (FLC) mask as an optical encoder for development of a solid-state Fourier-transform spectrometer. For this demonstration a 1×64 element array was striped and used as a 1×4 element device. The device intersected dispersed radiation and encoded each spectral component with a carrier signal by applying half-wave potential to each of the four striped (1×16) FLC elements, which varied the transmitted amplitude of the light from 0.03% to 28% of full scale. The light was spectrally recombined and imaged onto a photomultiplier and the resulting carriers (and their amplitudes) detected by Fourier transformation of the time-varying signal. Spectra of colored-glass filters were taken to demonstrate the possibilities of the instrument.

© 1997 Optical Society of America

Citation
David J. Funk and David S. Moore, "Fourier-transform spectroscopy using liquid-crystal technology," Opt. Lett. 22, 1799-1801 (1997)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-22-23-1799

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