三维光子晶体中三次谐波产生的显著增强。
Dramatic enhancement of third-harmonic generation in three-dimensional photonic crystals.
作者信息
Markowicz Przemyslaw P, Tiryaki Hanifi, Pudavar Haridas, Prasad Paras N, Lepeshkin Nick N, Boyd Robert W
机构信息
The Institute for Lasers, Photonics and Biophotonics, Departments of Chemistry and Physics, University at Buffalo, State University of New York at Buffalo, Buffalo, New York 14260, USA.
出版信息
Phys Rev Lett. 2004 Feb 27;92(8):083903. doi: 10.1103/PhysRevLett.92.083903. Epub 2004 Feb 26.
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.
我们观察到，在近红外激光束泵浦的三维聚苯乙烯-空气光子晶体中，三次谐波产生有显著增强。随着泵浦波长的调谐，当三次谐波波长接近带隙的短波长边缘时，增强峰值出现。我们表明，这种增强的起源是光子晶体的周期性结构所提供的相位匹配。
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