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17 000%/W second-harmonic conversion efficiency in single-crystalline aluminum nitride microresonators.
- Source :
- Applied Physics Letters; 9/24/2018, Vol. 113 Issue 13, pN.PAG-N.PAG, 5p, 3 Graphs
- Publication Year :
- 2018
-
Abstract
- High quality factor optical microcavities have been employed in a variety of material systems to enhance nonlinear optical interactions. While single-crystalline aluminum nitride microresonators have recently emerged as a low loss platform for integrated nonlinear optics such as four wave mixing and Raman lasing, few studies have investigated this material for second-harmonic generation. In this letter, we demonstrate an optimized fabrication of dually resonant phase-matched ring resonators from epitaxial aluminum nitride thin films. An unprecendented second-harmonic generation efficiency of 17 000%/W is obtained in the low power regime, and pump depletion is observed at a relatively low input power of 3.5 mW. This poses epitaxial aluminum nitride as the highest efficiency second-harmonic generator among current integrated platforms. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 113
- Issue :
- 13
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 132095938
- Full Text :
- https://doi.org/10.1063/1.5042506