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Proceedings Paper

Fast photorefractive response in BSO in the near infrared
Author(s): Erik Raita; Oleg V. Kobozev; Ervin Nippolainen; Alexei A. Kamshilin; Victor V. Prokofiev
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Paper Abstract

The polarization self-modulation effect has been applied for the effective measurement of the characteristic response time of nominally pure Bi12SiO20 at wavelengths of 810 nm and 980 nm. Owing to the oxygen deficiency in the crystal lattice, the studied BSO crystals have shown the unusual photorefractive sensitivity and the remarkable operation speed in near infrared spectral region. The response time of 130 ms has been measured at the wavelength of 810 nm and the response time of 540 ms at 8 equals 980 nm with the incident intensities of 110 mW/cm2 and 200 mW/cm2, respectively. To our knowledge this is the first experimental evidence of subsecond response in the infrared for the non- semiconductor photorefractive material.

Paper Details

Date Published: 10 April 2001
PDF: 5 pages
Proc. SPIE 4415, Optical Organic and Inorganic Materials, (10 April 2001); doi: 10.1117/12.425492
Show Author Affiliations
Erik Raita, Univ. of Joensuu (Finland)
Oleg V. Kobozev, Univ. of Joensuu (United States)
Ervin Nippolainen, Univ. of Joensuu (Finland)
Alexei A. Kamshilin, Univ. of Joensuu (Finland)
Victor V. Prokofiev, Univ. of Joensuu (Finland)

Published in SPIE Proceedings Vol. 4415:
Optical Organic and Inorganic Materials
Steponas P. Asmontas; Jonas Gradauskas, Editor(s)

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