ELECTRONIC SELF-DEFOCUSING OF NANOSECOND LASER-PULSES IN BULK ZNSE

被引：7

作者：

MILWARD, JR

JI, W

KAR, AK

PIDGEON, CR

WHERRETT, BS

机构：

[1] Department of Physics, Heriot-Watt University

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 69卷 / 10期

关键词：

D O I：

10.1063/1.347593

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A large refractive nonlinearity (- 2 x 10(-20) cm3) has been observed in polycrystalline ZnSe across a range of wavelengths just below the band edge, using nanosecond laser pulses. The transmitted spatial profiles are measured, and theoretical fits give the spectral response of the nonlinear refractive cross section at low irradiances. A comparison with band filling theory indicates that the dynamic Burstein-Moss shift is the dominant mechanism responsible for this refractive nonlinearity.

引用

页码：7351 / 7353

页数：3

共 14 条

[1]

AKHMANOV SA, 1972, LASER HDB, P1173

[2]

Born M., 1975, PRINCIPLES OPTICS, P383

[3]

Hellwege K.-H., 1982, LANDOLTBORNSTEIN NUM, V17, P126

[4] ROOM-TEMPERATURE OPTICAL NONLINEARITIES OF ELECTRONIC ORIGIN IN ZNSE [J].