Terahertz frequency Hall measurement by magneto-optical Kerr spectroscopy in InAs

被引：80

作者：

Shimano, R ^{[1
]}

Ino, Y

Svirko, YP

Kuwata-Gonokami, M

机构：

[1] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

[2] Japan Sci & Technol Corp, ERATO, Cooperat Excitat Project, Tokyo 1138656, Japan

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 02期

关键词：

D O I：

10.1063/1.1492319

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the time-domain terahertz (THz) magneto-optical Kerr spectroscopy in the frequency range from 0.5 to 2.5 THz. The developed technique employs reflection geometry, enabling high-frequency noncontact Hall measurements in opaque samples. We also present a method to reveal the off-diagonal component of the complex dielectric tensor from the measured polarization-dependent THz wave forms. At a static magnetic field of 0.48 T, a large Kerr rotation over 10degrees originating from magnetoplasma resonance is observed in an n-type undoped InAs wafer at room temperature. This indicates the strong potential of this material for the polarization modulator in the THz regime. (C) 2002 American Institute of Physics.

引用

页码：199 / 201

页数：3

共 10 条

[1] MAGNETOOPTICAL KERR EFFECT, ENHANCED BY THE PLASMA RESONANCE OF CHARGE-CARRIERS [J].