High average-power THz radiation from femtosecond laser-irradiated InAs in a magnetic field and its elliptical polarization characteristics

被引：241

作者：

Sarukura, N ^{[1
]}

Ohtake, H ^{[1
]}

Izumida, S ^{[1
]}

Liu, ZL ^{[1
]}

机构：

[1] Inst Mol Sci, Okazaki, Aichi 4448585, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 1998年 / 84卷 / 01期

关键词：

D O I：

10.1063/1.368068

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The THz-radiation power from bulk InAs irradiated with femtosecond optical pulses is significantly enhanced and reaches 650 mu W in a 1.7-T magnetic field with 1.5-W excitation power. The THz-radiation power is related almost quadratically both to the magnetic field and excitation laser power. We have also found that the power of the THz-radiation from an InAs sample in a magnetic field is over one order of magnitude higher than that from GaAs. Additionally, a dramatic change of ellipticity is observed, and the spectra of the horizontal and vertical polarization components are found to differ. (C) 1998 American Institute of Physics.

引用

页码：654 / 656

页数：3

共 17 条

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