| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Giant Enhancement of Second Harmonic Generation at Photonic Band Gap Edges |
| MA Dong-Li, REN Ming-Liang, DOU Jun-Hong, LI Zhi-Yuan** |
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190
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| Cite this article: |
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MA Dong-Li, REN Ming-Liang, DOU Jun-Hong et al 2010 Chin. Phys. Lett. 27 114209 |
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Abstract Second harmonic generation (SHG) in one-dimensional nonlinear photonic crystals made from periodically alternating ferroelectric and dielectric layers is investigated by means of the transfer matrix method. When tuned at the photonic band gap (PBG) edges, the fundamental wave and second harmonic wave slow down, and the filed enhancement takes place within the nonlinear photonic crystal. The phase mismatching can be compensated for to some extent and the second harmonic process will be enhanced. Numerical results show that the enhancement of SHG in the PBG structure can be up to four orders of magnitude compared with the traditional quasi-phase-matching structure.
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| Keywords:
42.65.Ky
42.70.Qs
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Received: 13 May 2010
Published: 22 October 2010
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| PACS: |
42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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42.70.Qs
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(Photonic bandgap materials)
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