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Tunable ultraviolet vertically-emitting organic laser
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DOI：10.1063/1.3571558.png)
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Abstract
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A solid-state organic thin-film laser with intracavity frequency doubling is reported. Tunable ultraviolet emission from 309 to 322 nm is achieved from a vertical external cavity surface-emitting organic laser, with 2% efficiency (1 mu J at 315 nm). The laser comprises a poly(methyl methacrylate) layer doped with Rhodamine 640, spun-cast onto a plane mirror, a remote concave mirror, a nonlinear crystal, and a dichroic separator. The output is spectrally narrow (< 0.5 nm full width at half maximum) and tunable through phase-matching selection of the fundamental radiation lasing modes. These results highlight a low-cost and portable alternative to tunable UV laser sources, useful for spectroscopic applications. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3571558]
Keywords:
SEMICONDUCTOR-LASERS
HIGH-POWER
DYE-LASER
UV-SOURCE
GENERATION
EMISSION
Journal
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3.6
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10.4W
Citations:
17.8W
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