Coherently superposed efficient second harmonic generation by domain wall series in ferroelectrics
Optics
2010-10-11 v1
Abstract
A novel mechanism of efficient second harmonic generation in domain wall series is reported. By employing angle modulation, obvious intensity peaks of second harmonic appear at specific incident angles utilizing the continuous laser source of 200mW, and the single-pass conversion efficiency comes up to 5%/W only through dozens of domain walls. It can be shown that the phenomenon is caused by coherent superposition of Cherenkov second harmonics (CSH) generated by different domain walls, which is a novel mechanism totally distinguished from Quasi-phase-matching (QPM).
Keywords
Cite
@article{arxiv.1010.1593,
title = {Coherently superposed efficient second harmonic generation by domain wall series in ferroelectrics},
author = {Huaijin Ren and Xuewei Deng and Xianfeng Chen},
journal= {arXiv preprint arXiv:1010.1593},
year = {2010}
}