Observation of transparency of Erbium-doped silicon nitride in photonic crystal nanobeam cavities.

Journal Article

One dimensional nanobeam photonic crystal cavities are fabricated in an Er-doped amorphous silicon nitride layer. Photoluminescence from the cavities around 1.54 microm is studied at cryogenic and room temperatures at different optical pump powers. The resonators demonstrate Purcell enhanced absorption and emission rates, also confirmed by time resolved measurements. Resonances exhibit linewidth narrowing with pump power, signifying absorption bleaching and the onset of stimulated emission in the material at both 5.5 K and room temperature. We estimate from the cavity linewidths that Er has been pumped to transparency at the cavity resonance wavelength.

Full Text

Duke Authors

Cited Authors

  • Gong, Y; Makarova, M; Yerci, S; Li, R; Stevens, MJ; Baek, B; Nam, SW; Dal Negro, L; Vuckovic, J

Published Date

  • June 2010

Published In

Volume / Issue

  • 18 / 13

Start / End Page

  • 13863 - 13873

PubMed ID

  • 20588519

Electronic International Standard Serial Number (EISSN)

  • 1094-4087

International Standard Serial Number (ISSN)

  • 1094-4087

Digital Object Identifier (DOI)

  • 10.1364/oe.18.013863

Language

  • eng