Pattern formation of second harmonic conical waves in a nonlinear medium with extended defect structure

Y. C. Lin, Kuan-Wei Su, Kai-Feng Huang, Yung-Fu Chen*

*此作品的通信作者

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

We experimentally demonstrate the propagation of the conical second harmonic fields generated from a nonlinear crystal with extended defects to investigate their pattern formation. The generated second harmonic waves are found to be the interference of multiple Bessel-like beams that originate from distinct longitudinal layers inside the crystal. To reconstruct the experimental results, we model the individual Bessel-like beam to be the superposition of an ensemble of identical decentered Gaussian waves with random phases. We present that the randomness of the phases leads the Bessel-like beams to show wave profiles with different extent of localization. Moreover, we use the coherent superposition of the developed wave functions with a phase factor to manifest the interference of multiple Bessel-like beams. The relative phases among the Bessel-like beams are shown to be closely related to the near and far-field patterns. With the experimental observations and the theoretical model, the relative phases are decided to successfully reconstruct the propagation characteristics of the multiple Bessel-like beams.

原文English
頁(從 - 到)27859-27868
頁數10
期刊Optics Express
22
發行號23
DOIs
出版狀態Published - 17 11月 2014

指紋

深入研究「Pattern formation of second harmonic conical waves in a nonlinear medium with extended defect structure」主題。共同形成了獨特的指紋。

引用此