Artículos de revistas
Evidences of the simultaneous presence of bow-tie and diamond scars in rare-earth doped amorphous silicon microstadium resonators
Registro en:
Journal Of Applied Physics. Amer Inst Physics, v. 103, n. 6, 2008.
0021-8979
WOS:000254536900007
10.1063/1.2895387
Autor
Figueira, DSL
Frateschi, NC
Institución
Resumen
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. 103 6