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Proceedings Paper

Design and performance of a dynamically aligned step-scan interferometer
Author(s): Richard A. Crocombe; Raul Curbelo; John C. Leonardi; David J. Johnson
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Paper Abstract

In the past decade advances in microprocessors have been applied in FT-IR spectrometers to deliver higher data system performance at substantially reduced cost. Now, advances in microprocessors and signal processing technology are being applied to overcome current performance limits in the FT-IR optical bench, and considerably expand their functionality. This paper describes the design and performance of a new generation of research-grade interferometer, the 896, using state-of-the-art technology. The major enhancements are: rapid auto-align (allowing interchanging of beamsplitters); dynamic alignment (giving active stabilization and allowing high performance operation over a wide variety of scan conditions); enhanced stability rapid-scan mode with general purpose kinetic software; step-scan mode (0.004 Hz to 800 Hz) with variable phase modulation; and dynamic range extension.

Paper Details

Date Published: 1 March 1992
PDF: 4 pages
Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); doi: 10.1117/12.56309
Show Author Affiliations
Richard A. Crocombe, Bio-Rad Labs., Inc. (United States)
Raul Curbelo, Bio-Rad Labs., Inc. (United States)
John C. Leonardi, Bio-Rad Labs., Inc. (United States)
David J. Johnson, Bio-Rad Labs., Inc. (United States)


Published in SPIE Proceedings Vol. 1575:
8th Intl Conf on Fourier Transform Spectroscopy

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