Effects of material parameter on interaction length to occur optical phase conjugation via stimulated Brillouin scattering in semiconductors

被引：2
|
作者：
Nimje, Nilesh [1 ]
Yadav, Nishchhal [1 ]
Ghosh, S. [1 ]
机构：
[1] Vikram Univ, Sch Studies Phys, Ujjain 456010, Madhya Pradesh, India
来源：
PHYSICS LETTERS A | 2012年 / 376卷 / 6-7期
关键词：
Plasma effect in semiconductor; Acousto-optical polarisation; Stimulated Brillouin scattering; Phase conjugation; Interaction length; ABSORPTION; WAVES;
D O I：
10.1016/j.physleta.2012.01.006
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In the present formulation using hydrodynamic model and coupled mode scheme of plasmas the interaction length necessary to achieve optical phase conjugation is obtained from steady-state Brillouin gain coefficient for a semiconductor crystal. The analytical investigation of steady-state gain of stimulated Brillouin scattering (SBS) is made by assuming that the SBS is resulted from the nonlinear interaction of an intense electromagnetic wave with acoustic perturbation internally generated due to acousto-optic property of the semiconductor crystal. Numerical estimates confirm that when cyclotron frequency is tuned with pump frequency, interaction length is found to be nearly 10(4) m smaller than that obtained in absence of magnetic filed. Pump intensity and free carrier concentration both helpful in reducing the required interaction length. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：850 / 853
页数：4
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