Mid-infrared Cr^2+:ZnSe random powder lasers | Zendy

C. Kim | Zendy; Dmitry Martyshkin | Zendy; Vladimir Fedorov | Zendy; Sergey Mirov | Zendy

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Mid-infrared Cr^2+:ZnSe random powder lasers

Author(s) -

C. Kim,

Dmitry Martyshkin,

Vladimir Fedorov,

Sergey Mirov

Publication year - 2008

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.004952

Subject(s) - materials science , laser , optics , infrared , raman spectroscopy , quartz , crystal (programming language) , grain size , ampoule , radiation , optoelectronics , composite material , physics , computer science , programming language

We report simple methods of laser active Cr2+:ZnSe powder fabrication with average grain sizes of either approximately 10 or approximately 1 microm without crystal growth stage. Pure, uniformly mixed ZnSe and CrSe powders annealed at 1000 masculineC for 3 days in a sealed evacuated (approximately 10(-4) Torr) quartz ampoule exhibited middle-infrared laser action at room temperature under 1.56 microm excitation of D(2) Raman shifted radiation of Nd:YAG laser. The output-input characteristic clearly demonstrated the threshold-like behavior of the output signal with the threshold energy level of 0.5 and 3 mJ in 2.9 mm spot for 10 and 1 microm grain sizes, respectively.

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