Abstract
In this article, we studied the photorefractive properties of Cu-doped (K0.5Na0.5)0.2 (Sr0.75Ba0.25)0.9Nb2O6 (Cu:KNSBN) crystals with different doping levels. The properties include two-wave mixing and self-pumped phase conjugation, absorption properties, and the growth conditions as well. We also studied the effect of the dimensions on the photorefractive properties. The mechanism of Cu-doped KNSBN and the influence of the different sites occupied by Cu+ on photorefractive properties are also discussed. All the experimental results showed that doping levels have much effect on the photorefractive properties. The crystal with a higher doping level has a higher effective charge carrier density, a larger coupling coefficient, and a faster response rate, which is suitable for fast optical information processing. Dimension has much influence on the photorefractive properties. The thinner crystal with the same doping level has a larger coupling gain coefficient, and a shorter response time.
Original language | English (US) |
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Pages (from-to) | 3371-3376 |
Number of pages | 6 |
Journal | Journal of Applied Physics |
Volume | 86 |
Issue number | 6 |
DOIs | |
State | Published - Sep 1999 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)