【摘要】 本文系统地研究了窄禁带半导体Hg_1-xCd_xTe（x=0.204）带间跃迁的动态Burstein-Moss效应。利用可调谐连续波CO₂激光的波长与100K时HgCdTe的能隙相匹配可在相当弱的光强下获得极大的非线性效应,观察到吸收系数随单色光光子能量的变化和随光强增加的吸收饱和现象,实验结果与我们的公式符合较好。更多还原

【Abstract】 The systematic study of a dynamic Burstein-Moss effeot by interband transition in Hg_1-xCd_xTe （x=0.204） is reported. The experiments rely on the near coincidence between step-tunable transition from a CW CO₂ laser and energy gap of HgCdTe a^t 100K. The gross nonlinear effect is obtained at quite low laser intensities. A shift of the absorption coefficient with increasing light intensity is observed. The experimental results are compared with the theory of ours.更多还原