Odd terahertz optical sidebands from asymmetric excitonic intersubband excitation

被引：7

作者：

Su, MY ^{[1
]}

Phillips, C

Ko, J

Coldren, L

Sherwin, MS

机构：

[1] Univ Calif Santa Barbara, Quantum Inst, Dept Phys, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Ctr Space Terahertz Technol, Santa Barbara, CA 93106 USA

[3] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London, England

[4] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

来源：

PHYSICA B | 1999年 / 272卷 / 1-4期

关键词：

terahertz; intersubband; exciton; non-perturbative;

D O I：

10.1016/S0921-4526(99)00316-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have generated terahertz (THz) optical sidebands on a near-infrared probe beam by driving an excitonic intersubband resonance with THz electric fields. We use TKz radiation polarized along the non-centrosymmetric axis of a quantum well system to generate a comb of sidebands omega(sideband) = omega(NIR) + n omega(THz). In exploring the process's rich polarization, power, and NIR frequency dependences we encounter both an efficient perturbative regime modeled by a chi((2)) non-linear susceptibility, and a non-perturbative regime which has not been previously explored in driven quantum systems. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：438 / 441

页数：4

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