Ultraviolet coherent random lasing in randomly assembled SnO2 nanowires

H. Y. Yang, Siu Fung Yu, Shu Ping Lau, S. H. Tsang, G. Z. Xing, T. Wu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

43 Citations (Scopus)

Abstract

Although nanostructured SnO2 exhibited ultraviolet stimulated emission at room temperature, the low emission intensities and occurrence of gain saturation restricted them to be considered as luminescent materials for semiconductor lasers. In this letter, we find that a large ultraviolet excitonic gain can be obtained from SnO2 nanowires coated with an amorphous layer. Under effective pumping, ultraviolet coherent random lasing can be realized from randomly assembled SnO2 nanowires at room temperature.
Original languageEnglish
Article number241121
JournalApplied Physics Letters
Volume94
Issue number24
DOIs
Publication statusPublished - 29 Jun 2009

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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