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arXiv · 0711.1549

Rare-earth Doped Amorphous Silicon Microdisk and Microstadium Resonators with Emission at 1550nm

D. S. L. Figueira·N. C. Frateschi
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Abstract

Microdisks and microstadium resonators were fabricated on erbium doped amorphous hydrogenated silicon (a-Si:H ) layers sandwiched in air and native SiO2 on Si substrates. Annealing condition is optimized to allow large emission at 1550 nm for samples with erbium concentrations as high as 1.02x10^20 atoms/cm3. Near field scanning optical microscopy shows evidences 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.

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D. S. L. Figueira, N. C. Frateschi. 2007-11-09. Rare-earth Doped Amorphous Silicon Microdisk and Microstadium Resonators with Emission at 1550nm. https://arxiv.org/abs/0711.1549

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