Transition from induced absorption to saturation of intersubband transitions in GaN/AlGaN quantum well structures

Gang Chen, R. Rapaport, C. Gmachl, H. M. Ng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we show that different GaN heterostructures exhibit distinct nonlinear optical response. The response is studied using spectrally integrated pump-probe technique. The intersubband (ISBT) relaxation dynamics of excited carriers in GaN quantum well(QW) structures and their nonlinearities is essential for possible ultrafast optoelectronic applications based on these transitions.

Original languageEnglish
Title of host publication2003 International Symposium on Compound Semiconductors, ISCS 2003
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages14-15
Number of pages2
ISBN (Electronic)0780378202
DOIs
StatePublished - 2003
Externally publishedYes
Event2003 International Symposium on Compound Semiconductors, ISCS 2003 - San Diego, United States
Duration: 25 Aug 200327 Aug 2003

Publication series

NameIEEE International Symposium on Compound Semiconductors, Proceedings
Volume2003-January

Conference

Conference2003 International Symposium on Compound Semiconductors, ISCS 2003
Country/TerritoryUnited States
CitySan Diego
Period25/08/0327/08/03

Bibliographical note

Publisher Copyright:
© 2003 IEEE.

Keywords

  • Absorption
  • Aluminum gallium nitride
  • Gallium nitride
  • Nonlinear optics
  • Optical pumping
  • Optical saturation
  • Optical scattering
  • Optical superlattices
  • Probes
  • Ultrafast optics

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