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Linewidth narrowing and Purcell enhancement in photonic crystal cavities on an Er-doped silicon nitride platform

Year: 2010
Type: article
Abstract: Light emission at 1.54 microm from an Er-doped amorphous silicon nitride layer coupled to photonic crystal resonators at cryogenic and room temperatures and under varying optical pump powers has been studied. The results demonstrate that small mode volume, high quality factor resonators enhance Er absorption and emission rates at the cavity resonance. Time resolved measurements give 11- to 17-fold Purcell enhancement of spontaneous emission at cryogenic temperatures, and 2.4-fold enhancement at room temperature. Resonances exhibit linewidth narrowing with pump power, signifying absorption bleaching and partial inversion of the Er ions cryogenic temperatures. We estimate that 31% of Er ions are excited at the highest pump power.
DOI: 10.1364/oe.18.002601
Authors: Yiyang Gong, Maria Makarova, Selçuk Yerci, Rui Li, Martin J. Stevens, Burm Baek, Sae Woo Nam, Robert H. Hadfield, Sander N. Dorenbos, Val Zwiller, Jelena Vuckovic, Luca Dal Negro
Language: English
Open Access status: gold
Estimated APC paid: $2,270
Funders: National Science Foundation, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, U.S. Air Force, Multidisciplinary University Research Initiative, Engineering and Physical Sciences Research Council, Air Force Office of Scientific Research
Awards: G1523888516, G4304902410, Renewal Proposal for the National Nanofabrication Users Network, G5881256911, G7090116110, Ultrafast infrared superconducting single-photon detectors
OpenAlex ID: W2091117283
FWCI: 4.123
Cites: 18
Cited by: 48
Related to: 10