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Rev. Sci. Instrum. 58, 1675 (1987); http://dx.doi.org/10.1063/1.1139656 (3 pages)

Photoelastic modulator for the mid‐IR range down to 33 μm with inexpensive and simple control electronics

Günter Georg Hoffmann, Bernhard Schrader, and Günther Snatzke

Lehrstuhl für Strukturchemie, Ruhruniversität Bochum, Postfach 102148, D‐4630 Bochum, Federal Republic of Germany and Institut für Physikalische und Theoretische Chemie, Universität Essen‐GHS, Postfach, D‐4300 Essen, Federal Republic of Germany

(Received 1 December 1986; accepted 20 April 1987)

The construction of a photoelastic modulator is described which is intended to push the long wavelength limit of infrared circular dichroism measurements down to about 300 cm1 (33 μm). A simple electronic circuit has been designed to drive the device. The performance of the modulator is evaluated by transmission and calibration spectra.

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KEYWORDS and PACS

PACS

  • 42.79.Hp

    Optical processors, correlators, and modulators

  • 07.77.-n

    Atomic, molecular, and charged-particle sources and detectors

  • 37.20.+j

    Atomic and molecular beam sources and techniques

  • 07.60.-j

    Optical instruments and equipment

  • 07.57.Ty

    Infrared spectrometers, auxiliary equipment, and techniques

ARTICLE DATA

PUBLICATION DATA

ISSN

0034-6748 (print)  
1089-7623 (online)

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    References

    E. C. Hsu and G. Holzwarth, J. Chem. Phys. 59, 4678 (1973JCPSA6000059000009004678000001).


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