Performance improvement of a holographic double-exposure interferometer by heating of the photorefractive recording crystal |
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| Authors: | M Weber F Rickermann F Abbing G von Bally |
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| Institution: | (1) Laboratory of Biophysics, Institute of Experimental Audiology, University of Münster, Robert-Koch-Strasse 45, D-48129 Münster, Germany (Fax: +49-251/83-58536, E-mail: maweber@uni-muenster.de), DE |
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| Abstract: | A holographic double-exposure interferometer for quasi real-time analysis is realized, utilizing a photorefractive BTO:Cd
crystal for hologram recording. Heating of the crystal reduces the time required to reach the steady-state working situation.
Light-induced absorption losses are reduced by heating as well. Additionally, the diffraction efficiency is increased by this
method. A sixfold increase in the light intensity of the reconstructed interferogram is achieved.
Received: 2 December 1998 / Revised version: 28 January 1999 / Published online: 7 April 1999 |
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| Keywords: | PACS: 42 40 KW 42 65 HW 78 20 Dj |
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