外文题目: Phase Matching Using the Linear Electro-Optic Effect
作者: Cui, Zijian; Liu, Dean; Miao, Jie; Yang, Aihua; Zhu, Jianqiang
刊名: Phys. Rev. Lett.
年: 2017 卷: 118 期: 4 文章编号：43901
英文关键词:

OPTICAL PARAMETRIC OSCILLATOR; 4TH HARMONIC-GENERATION; 3RD-HARMONIC GENERATION; CRYSTALS; LASERS; LIGHT; MISMATCH; TISSUES; LINBO3; KDP
英文摘要:
Phase matching is a necessary condition for achieving high-efficiency optical-frequency conversion. To date, practical means of accomplishing phase matching in homogeneous crystals remain limited, despite considerable efforts. Herein, we report a new class of methods aimed at achieving quasiperfect phase matching, based on controllable birefringence produced via the linear electro-optic effect, termed "voltage-tuning phase matching." The wave vectors of the induced polarization and the generated fields can be matched and maintained along the direction of propagation by introducing an external electric field. We analyze the validity and feasibility of this method theoretically and demonstrate it experimentally by applying the linear electro-optic effect and fourth-harmonic generation simultaneously in a partially deuterated KH2PO4 crystal. Quasiperfect phase matching is achieved systematically over a temperature range of the initial phase-matching temperature +/- 2 degrees C. Moreover, this method can overcome the limitation of the birefringence in traditional technologies and provides new functionalities for conventional nonlinear materials as well as low-birefringence and isotropic materials. This technology may significantly impact the study of optical-frequency conversion and has promise for a broad range of applications in nonlinear optics.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1103/PhysRevLett.118.043901


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