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
Pubmed Central 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