Low-threshold VUV amplification in Kr gases with a bichromatic coupling method

Masahiro Takeoka, Atsushi Uchida, Tsuneo Nakata, Fumihiko Kannari

    Research output: Contribution to journalConference article

    1 Citation (Scopus)

    Abstract

    We propose and analyze a novel low-threshold amplification scheme by bichromatically coupling three upper states including a metastable state. We numerically show that it is possible to amplify VUV emission in Kr gases without population inversion at the probe transition. It is shown that the origin of low-threshold gain is the population trapping of upper states dressed by two intense coupling lasers, and there is a possibility of forming large population inversion in optically dressed systems.

    Original languageEnglish
    Pages (from-to)150-157
    Number of pages8
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Volume2989
    DOIs
    Publication statusPublished - 1997 Dec 1
    EventModeling and Simulation of Higher-Power Laser Systems IV - San Jose, CA, United States
    Duration: 1997 Feb 121997 Feb 12

    Keywords

    • Dressed state
    • Kr gases
    • Lasing without population inversion
    • Population trapping
    • Quantum interference
    • Two-photon coherence
    • VUV radiation

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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