Phase-reversed structures in superlattice of nonlinear materials

OPTICS COMMUNICATIONS

卷:285

Article

Antonosyan, D. A.¹ 

[1] Yerevan State Univ, Yerevan 0025, Armenia

关键词: Multi-photon processes;    Quasi-phase-matching;    Phase-reversed superlattice;    Down-conversion;   

DOI  :  10.1016/j.optcom.2011.11.034

来源: Elsevier

【 摘 要 】

We present detailed description of so-called phase-reversed structures that are characterized by two grating wave vectors allowing simultaneously phase-match two parametric three-wave processes. The novelty is that the structure is realized as a definite assembly of nonlinear segments leading to detailed description of cascaded three-photon processes with the parameters of realistic structured nonlinear materials of finite length. We apply these results for analysis of the quasi-phase-matching in production of both photon triplet and four-photon states in cascaded down-conversion. The received results are matched with the experimental data. (C) 2011 Elsevier B.V. All rights reserved.

【 授权许可】

Free