Optical Second-Harmonic Generation from Unbiased Single Ga1-xAlxAs Quantum Wells with Symmetric Structures

Juh Tzeng Lue, Kuang Yao Lo, Chin Ching Tzeng

研究成果: Article

15 引文 (Scopus)

摘要

Nonlinear optical susceptibilities of various quantum-well Ga1-xAlxAs compounds grown by molecular beam epitaxy are measured by pumping with a Q-switched and mode-locked Nd: YAG laser. The contribution of second-harmonic waves from the bulk nonlinear susceptibility and the electrical dipole sheet in the quantum well is also calculated separately. The measured second-harmonic reflectivity decreases as the silicon doping concentration increases and its angular variation follows the Bloembergen and Pershan (BP) theory. Both the experimental and theoretical results indicate that the electron gas and dipole sheet in the unbiased single quantum wells have a negligible effect on the second-order nonlinear generation.

原文English
頁(從 - 到)302-307
頁數6
期刊IEEE Journal of Quantum Electronics
28
發行號1
DOIs
出版狀態Published - 1992 一月

指紋

Harmonic generation
Semiconductor quantum wells
harmonic generations
quantum wells
dipoles
magnetic permeability
harmonics
Pumping (laser)
Electron gas
Laser modes
Molecular beam epitaxy
electron gas
YAG lasers
pumping
molecular beam epitaxy
Doping (additives)
reflectance
Silicon
Lasers
silicon

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

引用此文

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AB - Nonlinear optical susceptibilities of various quantum-well Ga1-xAlxAs compounds grown by molecular beam epitaxy are measured by pumping with a Q-switched and mode-locked Nd: YAG laser. The contribution of second-harmonic waves from the bulk nonlinear susceptibility and the electrical dipole sheet in the quantum well is also calculated separately. The measured second-harmonic reflectivity decreases as the silicon doping concentration increases and its angular variation follows the Bloembergen and Pershan (BP) theory. Both the experimental and theoretical results indicate that the electron gas and dipole sheet in the unbiased single quantum wells have a negligible effect on the second-order nonlinear generation.

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