Investigations of harmonic generations in aperiodic optical superlattices

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	Investigations of harmonic generations in aperiodic optical superlattices
	Gu, BY ; Zhang, Y ; Dong, BZ
刊名	JOURNAL OF APPLIED PHYSICS
	2000
卷号	87 期号:11 页码:7629
关键词	POLED LITHIUM-NIOBATE 2ND-HARMONIC GENERATION 3RD-HARMONIC GENERATION WAVE-GUIDES COMPRESSION BANDWIDTH GRATINGS LITAO3
ISSN号	0021-8979
通讯作者	Gu, BY: Abdus Salam Int Ctr Theoret Phys, POB 586, I-34100 Trieste, Italy.
中文摘要	We envisage the enhanced effect of harmonic generations from aperiodic optical superlattices (AOSs) achieved by inverting poled ferroelectric domains in samples. The search of optimal AOSs structures belongs to solving a difficult inverse source problem in nonlinear optics. We employ the simulated annealing method to successfully deal with this problem. We present the analyses of the design idea in the real-space representation and carry out several model designs. The constructed AOSs implement multiple wavelength second-harmonic generation and the coupled third-harmonic generation with an identical effective nonlinear coefficient at the preassigned wavelengths. The simulations show that the harmonic generations in the constructed AOSs can approach the prescribed goal better than those with the Fibonacci optical superlattice. The effective nonlinear coefficients versus the optical wave propagating distance from the impinging surface of incident light in the sample exhibit monotonically increasing behavior. This clearly infers that the contribution from each and every block to the optical parametric processes is in the constructive interference state. We also investigate the influence of the random fluctuation of the thickness of blocks on the performance of the constructed AOSs in detail for simulating practical fabrications and testing the performance stability of the sample. (C) 2000 American Institute of Physics. [S0021-8979(00)00511-9].
收录类别	SCI
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/40352]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Gu, BY,Zhang, Y,Dong, BZ. Investigations of harmonic generations in aperiodic optical superlattices[J]. JOURNAL OF APPLIED PHYSICS,2000,87(11):7629.
APA	Gu, BY,Zhang, Y,&Dong, BZ.(2000).Investigations of harmonic generations in aperiodic optical superlattices.JOURNAL OF APPLIED PHYSICS,87(11),7629.
MLA	Gu, BY,et al."Investigations of harmonic generations in aperiodic optical superlattices".JOURNAL OF APPLIED PHYSICS 87.11(2000):7629.