Carrier dynamics investigation in a quantum cascade laser using Mid-IR femtosecond pulses

Sheng Liu, Elaine Lalanne, Anthony Johnson, Peter Q. Liu, Claire F. Gmachl

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In a room temperature 4.5 μm QCL resonantly pumped with fs Mid-IR pulses, we observe an ultrafast gain recovery within the first 200 fs, gain oscillation within the 1 ps and a slower gain recovery of lifetime ~2-3 ps.

Original languageAmerican English
Title of host publicationCLEO
Subtitle of host publicationScience and Innovations, CLEO_SI 2011
StatePublished - Dec 1 2011
EventCLEO: Science and Innovations, CLEO_SI 2011 - Baltimore, MD, United States
Duration: May 1 2011May 6 2011

Publication series

NameOptics InfoBase Conference Papers


ConferenceCLEO: Science and Innovations, CLEO_SI 2011
Country/TerritoryUnited States
CityBaltimore, MD

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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