Dramatic Enhancement of Third-Harmonic Generation in Three-Dimensional Photonic Crystals
- 26 February 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 92 (8) , 083903
- https://doi.org/10.1103/physrevlett.92.083903
Abstract
We have observed a dramatic enhancement of third-harmonic generation in 3D polystyrene-air photonic crystals pumped by a near infrared laser beam. As the pump wavelength is tuned, the peak of the enhancement occurs when the third-harmonic wavelength approaches the short-wavelength edge of the band gap. We show that the origin of the enhancement is phase matching provided by the periodic structure of the photonic crystals.Keywords
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