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 language | English (US) |
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Pages (from-to) | 741-744 |
Number of pages | 4 |
Journal | Review of Scientific Instruments |
Volume | 47 |
Issue number | 6 |
DOIs | |
State | Published - 1976 |
Externally published | Yes |
ASJC Scopus subject areas
- Instrumentation