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|Type:||Artigo de periódico|
|Title:||Evidences of the simultaneous presence of bow-tie and diamond scars in rare-earth doped amorphous silicon microstadium resonators|
|Abstract:||Microdisks and microstadium resonators were fabricated on erbium doped amorphous hydrogenated silicon (a-Si: H < Er >) layers sandwiched in air and native SiO(2) on Si substrates. Annealing condition is optimized to allow large emission at 1550 nm for samples with erbium concentrations as high as 1.02 x 10(20) atoms/cm(3). Near field scanning optical microscopy shows evidence of the simultaneous presence of bow-tie and diamond scars. These modes indicate the high quality of the resonators and the potentiality for achieving amorphous silicon microcavity lasers. (C) 2008 American Institute of Physics.|
|Editor:||Amer Inst Physics|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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