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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 13 — Jun. 21, 2010
  • pp: 13863–13873

Observation of Transparency of Erbium-doped Silicon nitride in photonic crystal nanobeam cavities

Yiyang Gong, Maria Makarova, Selçuk Yerci, Rui Li, Martin J. Stevens, Burm Baek, Sae Woo Nam, Luca Dal Negro, and Jelena Vučković  »View Author Affiliations

Optics Express, Vol. 18, Issue 13, pp. 13863-13873 (2010)

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One dimensional nanobeam photonic crystal cavities are fabricated in an Er-doped amorphous silicon nitride layer. Photoluminescence from the cavities around 1.54 µm 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.

© 2010 Optical Society of America

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(230.5750) Optical devices : Resonators
(230.6080) Optical devices : Sources
(260.3800) Physical optics : Luminescence
(230.5298) Optical devices : Photonic crystals

ToC Category:
Photonic Crystals

Original Manuscript: May 17, 2010
Revised Manuscript: June 5, 2010
Manuscript Accepted: June 7, 2010
Published: June 14, 2010

Yiyang Gong, Maria Makarova, Selcuk Yerci, Rui Li, Martin Stevens, Burm Baek, Sae Woo Nam, Luca Dal Negro, and Jelena Vuckovic, "Observation of Transparency of Erbium-doped Silicon nitride in photonic crystal nanobeam cavities," Opt. Express 18, 13863-13873 (2010)

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