Work

Quasiphase matched surface emitting second harmonic generation in periodically reversed asymmetric GaAs/AlGaAs quantum well waveguide

Year: 1997

Type: article

Abstract: We experimentally demonstrate surface-emitting second harmonic generation in a waveguide containing asymmetric coupled GaAs/AlGaAs quantum wells. The nonlinear conversion efficiency is enhanced by reversing the asymmetric well orientation every coherence length, in order to quasiphase match the vertical second harmonic generation process. The measured spectrum of the asymmetric quantum well susceptibility is dominated by an excitonic peak at a pump frequency corresponding to half of the first electron-heavy hole transition energy.

Source: Applied Physics Letters

DOI: 10.1063/1.118987

Authors: A. Fiore, Y. Beaulieu, S. Janz, J. P. McCaffrey, Z. R. Wasilewski, D. X. Xu

Institutions: National Academies of Sciences, Engineering, and Medicine, Institute for Microstructural Sciences

Language: English

Topic: Photorefractive and Nonlinear Optics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W2062099871

FWCI: 2.001

Cites: 21

Cited by: 16

Related to: 10