Li B, Williams G, Rand SC, Hinklin T, Laine RM. Continuous-wave ultraviolet laser action in strongly scattering Nd-doped alumina.
OPTICS LETTERS 2002;
27:394-6. [PMID:
18007812 DOI:
10.1364/ol.27.000394]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We report electrically pumped, cw laser action near 405 nm from Nd(3+) -doped delta -alumina nanopowders. To our knowledge, this is the first report of stimulated emission from the high-lying F(2) -excited states, achieved through feedback from strong elastic scattering of light over transport path lengths shorter than half a wavelength.
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