Dispersion of birefringence in AgGaS2 and CuGaS2

被引：6

作者：

Choi, IH

Eom, SH

Yu, PY

机构：

[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720

[2] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

来源：

JOURNAL OF APPLIED PHYSICS | 1997年 / 82卷 / 06期

关键词：

D O I：

10.1063/1.366150

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The natural birefringence in two chalcopyrite semiconductors AgGaS2 and CuGaS2 have been measured in the visible at both room and liquid helium temperatures. This birefringence exhibits a sign reversal and considerable dispersion near the band gap in both samples. A phenomenological quasicubic model which was proposed to explain the dispersion of natural birefringence in wurtzite-type II-VI semiconductors is found to explain our experimental results quite satisfactorily provided exciton effect is included in fitting the data at low temperature. (C) 1997 American Institute of Physics.

引用

页码：3100 / 3104

页数：5

共 10 条

[1]

BHAR GC, 1976, APPL OPTICS, V15, P305, DOI 10.1364/AO.15.0305_1

[2] TEMPERATURE-DEPENDENT SELLMEIER COEFFICIENTS AND COHERENCE LENGTHS FOR SOME CHALCOPYRITE CRYSTALS [J].