Shallow trap modelling of infrared sensitive BaTiO3

Ross, G.W., Jeffrey, P.M., Eason, R.W., Damzen, M.J., Garcia, R.R., Troth, R., Garrett, M.H. and Rytz, D. (1994) Shallow trap modelling of infrared sensitive BaTiO3. In, CLEO Europe: Conference on Lasers & Electro-Optics Europe, Amsterdam, NL, 28 Aug - 02 Sep 1994.


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We present experimental data for the intensity-dependent absorption coefficient of a photorefractive "blue" sample of rhodium-doped BaTiO3 using beams of different wavelengths. A numerical photorefractive two-level model incorporating dual-wavelength illumination and a secondary photorefractive centre gives good agreement with experiment. We deduce values for the number densities, photoionisation cross-sections, thermal ionisation rate and recombination coefficients of the photorefractive centres. In this sample we determine that there is the usual deep trap concentration of ~ 2x10.

Item Type: Conference or Workshop Item (Paper)
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Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions : University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 77183
Accepted Date and Publication Date:
Date Deposited: 11 Mar 2010
Last Modified: 31 Mar 2016 13:11

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