TRANSIENT ENERGY-TRANSFER IN PS 2-PHOTON ABSORPTION EXPERIMENTS IN CDTE AT ROOM-TEMPERATURE

被引：9

作者：

RUCKMANN, I ^{[1
]}

KORNACK, J ^{[1
]}

KOLENDA, J ^{[1
]}

PETRAUSKAS, M ^{[1
]}

机构：

[1] VILNIUS STATE UNIV,DEPT SEMICOND PHYS,VILNIUS 232054,LITHUANIA,USSR

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1990年 / 158卷 / 02期

关键词：

D O I：

10.1002/pssb.2221580237

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

One‐beam transmission experiments and two‐beam‐coupling experiments with 35 ps‐pulses at 1.06 μm are performed in CdTe and CdTe: Ge to investigate (i) the nonlinear (two‐photon (TPA), free‐carrier and two‐step) absorption processes, (ii) their kinetics, and (iii) the transient energy transfer (TET) from stronger pump beam to the weaker probe beam, caused by coherent coupling which is observed around (with its maximum just before) zero delay. The competition between TPA and TET is demonstrated by oscillating intensity dependences of the probe‐beam transmittivity measured and calculated at small delays, which can be used to realize a continuous transition from optical beam amplification to attenuation at a fixed delay in dependence on the pump intensity only. The influence of the pump‐to‐probe intensity ratio on TET is discussed. Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：769 / 780

页数：12

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