Inexpensive high-speed dentist drill light chopper and its use in rejecting luminescence background from Raman spectra

R. J. Nemanich, S. A. Solin, J. Doehler

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

An inexpensive dentist drill laser beam chopper is described. The chopper, which can be tuned for a chopping frequency from 100 Hz to 400 kHz, is compact, stable, and easily constructed. The usefulness of the dentist drill laser beam chopper is demonstrated in a technique for the suppression of luminescence background in Raman spectra. The technique is shown to be capable of almost complete suppression of luminescence with decay lifetimes greater than 10 -6 sec.

Original languageEnglish (US)
Pages (from-to)741-744
Number of pages4
JournalReview of Scientific Instruments
Volume47
Issue number6
DOIs
StatePublished - Dec 1 1976
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation

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