Journal
OPTICS EXPRESS
Volume 17, Issue 17, Pages 14502-14510Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.014502
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Funding
- National Natural Science Foundation [10634080, 10525419]
- State Key Development Program [2007CB613205]
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We theoretically investigate second harmonic generation (SHG) in one-dimensional multilayer nonlinear photonic crystal (NPC) structures with distributed Bragg reflector (DBR) as mirrors. The NPC structures have periodic modulation on both the linear and second-order susceptibility. Three major physical mechanisms, quasi-phase matching (QPM) effect, slow light effect at photonic band gap edges, and cavity effect induced by DBR mirrors can be harnessed to enhance SHG. Selection of appropriate structural parameters can facilitate coexistence of these mechanisms to act collectively and constructively to create very high SHG conversion efficiency with an enhancement by up to seven orders of magnitude compared with the ordinary NPC where only QPM works. (C) 2009 Optical Society of America
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