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

Published

January 25, 2010

Author(s)

Yiyang Gong, Maria Makarova, Selcuk Yerci, Rui Li, Martin Stevens, Burm Baek, Sae Woo Nam, Robert Hadfield, Sander N. Dorenbos, Val Zwiller, Luca Dal Negro, Jelena Vuckovic

Abstract

Light emission at 1.54 mm 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.

Citation

Optics Express

Volume

18

Issue

3

Pub Type

Journals

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Citation

Gong, Y. , Makarova, M. , Yerci, S. , Li, R. , Stevens, M. , Baek, B. , Nam, S. , Hadfield, R. , Dorenbos, S. , Zwiller, V. , Dal Negro, L. and Vuckovic, J. (2010), Linewidth narrowing and Purcell enhancement in photonic crystal cavities on an Er-doped silicon nitride platform, Optics Express, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=904618 (Accessed October 7, 2024)