Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 11,
  • Issue 3,
  • pp. 138-141
  • (2007)

Coherent Absorption Spectroscopy with Supercontinuum for Semiconductor Quantum Well Structure

Open Access Open Access

Abstract

We suggest that supercontinuum can be used for absorption spectroscopy to observe the exciton levels of a semiconductor nano-structure. Exciton absorption spectrum of a GaAs/AlGaAs quantum well was observed using supercontinuum generated by a microstructrured fiber pumped by a femtosecond (fs) pulsed laser. Significantly narrower peaks were observed in the absorption spectrum from 11 K up to room temperature than photoluminescence (PL) spectrum peaks. Because supercontinuum is coherent light and can readily provide high enough intensity, this method can provide a coherent ultra-broad band light source to identify exciton levels in semiconductors, and be applicable to coherent nonlinear spectroscopy such as electromagnetically induced transparency (EIT), lasing without inversion (LWI) and coherent photon control in semiconductor quantum structures.

© 2007 Optical Society of Korea

PDF Article
More Like This
Electromagnetically induced transparency from electron spin coherences in semiconductor quantum wells [Invited]

Hailin Wang and Shannon O’Leary
J. Opt. Soc. Am. B 29(2) A6-A16 (2012)

Excitonic enhancement of two-photon absorption in semiconductor quantum-well structures

Amjad Obeidat and Jacob Khurgin
J. Opt. Soc. Am. B 12(7) 1222-1227 (1995)

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.


Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved