Chinese Optics Letters, 2024, 22 (3): 031902, Published Online: Mar. 22, 2024
Nonlinear photonic quasi-periodic spiral
nonlinear photonic quasi-crystal second-harmonic generation Vogel’s spiral nonlinear Raman–Nath diffraction femtosecond laser poling
Abstract
The design of nonlinear photonic Vogel’s spiral based on quasi-crystal theory was demonstrated. Two main parameters of Vogel’s spiral were arranged to obtain multi-reciprocal circles. Typical structure was fabricated by the near-infrared femtosecond laser poling technique, forming a nonlinear photonic structure, and multiple ring-like nonlinear Raman–Nath second-harmonic generation processes were realized and analyzed in detail. The structure for the cascaded third-harmonic generation process was predicted. The results could help deepen the understanding of Vogel’s spiral and quasi-crystal and pave the way for the combination of quasi-crystal theory with more aperiodic structures.
Jing Zeng, Sen Wang, Ruwei Zhao, Yongxing Liu, Tiefeng Xu, Yan Sheng, Tianxiang Xu. Nonlinear photonic quasi-periodic spiral[J]. Chinese Optics Letters, 2024, 22(3): 031902.