用 PPRKTP 验证双轴光学类的角准相位匹配理论。

Validation of the angular quasi-phase-matching theory for the biaxial optical class using PPRKTP.

出版信息

Opt Lett. 2018 Sep 1;43(17):4276-4279. doi: 10.1364/OL.43.004276.

DOI:10.1364/OL.43.004276

Abstract

We report the first experimental validation of angular quasi-phase-matching (AQPM) theory in a biaxial crystal by performing second-harmonic generation (SHG) in the periodically-poled Rb-doped KTiOPO (PPRKTP) crystal cut as a sphere. Both AQPM and birefringence phase-matching (BPM) angles were measured thanks to a Kappa circle.

摘要

我们通过在作为球体切割的掺铷钾钛氧磷酸（PPRKTP）周期性极化晶体中进行二次谐波产生（SHG），首次在双轴晶体中验证了角准相位匹配（AQPM）理论。借助 Kappa 圆，我们测量了 AQPM 和双折射相位匹配（BPM）角度。