14 September 2006 Spectra of ZnO random lasers under nanosecond pumping
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Investigations of ZnO random lasers spectra due to single shot of nanosecond pumping were performed using CCD camera Videoscan-285. It was obtained that these spectra essentially differ from lasing spectra under picosecond pumping: as a rule the line widths are significantly larger, often spectra have quite smooth shape; often spectra essentially change from shot to shot in random manner on the same pumping spot. From our point of view it can be the result of many lasing acts appearance during single pumping pulse and of lasing lines frequency changing in every lasing act.
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V. M. Markushev, V. M. Markushev, M. V. Ryzhkov, M. V. Ryzhkov, Ch. M. Briskina, Ch. M. Briskina, H. Cao, H. Cao, "Spectra of ZnO random lasers under nanosecond pumping", Proc. SPIE 6320, Complex Photonic Media, 63200B (14 September 2006); doi: 10.1117/12.679993; https://doi.org/10.1117/12.679993

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