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Conferences > PEMD > 2001 > D > 246

Sub-nanosecond transients in SC field dynamics of CdTer:Ge crystals

K. Jarašiūnas, M. Sūdžius, R. Aleksiejūnas, and K. Shcherbin

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Abstract

We analyze peculiarities of free carrier and SC field sub-nanosecond dynamics in CdTeiGe crystals, using DFWM technique at 1.06μm wavelength. Fast decay and subsequent recovery of FWM signals, both on photorefractive and free carrier gratings, indicate electron-hole competition and presence of few carrier generation sources. Numerical calculations, using two-deep trap model, explain the origin of fast transients, but not electron-trap saturation with excitation; for this an additional defect is required.

© 2001 Optical Society of America

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