Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-29T06:57:23.057Z Has data issue: false hasContentIssue false
  • English
  • Français

Photochromic-Induced Photorefractive Changes in Barium Titanate

Published online by Cambridge University Press:  21 February 2011

M. H. Garrett ,
J. Y. Chang ,
H. P. Jenssen  and
C. Warde
M. H. Garrett
Affiliation:
Center for Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm 13–3157, Cambridge, MA 02139
J. Y. Chang
Affiliation:
Departments of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm 13–3157, Cambridge, MA 02139
H. P. Jenssen
Affiliation:
Center for Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm 13–3157, Cambridge, MA 02139
C. Warde
Affiliation:
Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Ave. Rm 13–3157, Cambridge, MA 02139
Get access

Abstract

Photochromism in barium titanate was found to affect its deep and shallow trap properties. Argon ion laser illumination at 514.5 nm photo-induced semi-permanent (thermally reversible) changes in the visible absorption spectrum of barium titanate that were stable at room temperature. Increases in absorption at 514.5 nm, also the operating wavelength used to determine photorefractive properties, caused a decrease in the photorefractive response time but also a decrease in the sensitivity. When the photochromism was inactive the crystal shows light-induced absorption. With the photochromism saturated the crystal showed light-induced transparency. A model with two photoactive levels is used to characterize the photorefractive properties of this photochromic crystal.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 228: Symposium N – Materials for Optical Information Processing , 1991 , 147
Copyright
Copyright © Materials Research Society 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Günter, P. and Huignard, J.-P., Photorefractive Materials-and Their Applications I, (Springer-Verlag, Berlin Heidelberg, 1988).Google Scholar
2. Tayebati, P. and Mahgerefteh, D., J. Opt. Soc. Am B, May 1991.Google Scholar
3. Schunemann, P., Pollak, T. M., Yang, Y., Teng, Y.-Y., and Wong, C., J. Opt. Soc. Am. B 5(8), 1702, (1988).Google Scholar
4. Pollak, T. M., (private communication).Google Scholar
5. Staebler, D. L. and Phillips, W., Appl. Phys. Lett. 24(6), 268 (1974).CrossRefGoogle Scholar
6. Krätzig, E. and Kurz, H., J. Electrochem. Soc.:Solid-State Science and Technology, 131 (1977).CrossRefGoogle Scholar
7. Brost, G. A., Motes, R. A., Rotge, J. R., J. Opt. Soc. Am. B 5, 1879 (1988).CrossRefGoogle Scholar
8. Pierce, R. M., Cudney, R. S., Bacher, G. D., and Feinberg, J., Opt. Lett. 15, 414 (1990).Google Scholar
9. Mahgerefteh, D. and Feinberg, J., Phys. Rev. Lett. 64, 2195 (1990).Google Scholar