Observation of Transparency of Erbium-doped Silicon Nitride in Photonic Crystal Nanobeam Cavities
Abstract
One dimensional nanobeam photonic crystal cavities are fabricated in an Er-doped amorphous silicon nitride layer. Photoluminescence from the cavities around 1.54 micrometers 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 21, 2010
- Accession Number
- ADA541299
Entities
People
- Burm Baek
- Jelena Vučković
- Luca D. Negro
- Maria Makarova
- Martin J. Stevens
- Rui Li
- Sae W. Nam
- Selçuk Yerci
- Yiyang Gong
Organizations
- Stanford University