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Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 47,
  • Issue 5,
  • pp. 539-543
  • (1993)

A Miniaturized, No-Moving-Parts Raman Spectrometer

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Abstract

A solid-state acousto-optic tunable filter (AOTF) is combined with krypton laser excitation (647 nm), holographic Raman filters, and photon-counting silicon avalanche photodiode (APD) detection to construct a miniaturized Raman spectrometer with no moving parts. The physically compact AOTF and the highly integrated APD provide a rugged, digitally controlled spectrometer of moderate spectral resolution and with a footprint comparable in size to a laboratory notebook. Instrument design details are considered and representative spectra are reported. Potential areas of application for this prototype Raman spectrometer are also discussed.

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