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.
| Original language | English |
|---|---|
| Journal | Physical Review Letters |
| Volume | 92 |
| Issue number | 8 |
| DOIs | |
| State | Published - 2004 |
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