Broadband second harmonic generation in aperiodic nonlinear photonic crystals: 1D projection from 2D Vogel sunflower spiral array

The structure of the sunflower head can be used to realize broadband applications in optics. However, this 2D structure, with a ring-shaped reciprocal space, only has a normalized Fourier coefficient peak around 0.033, which leads to a relatively low conversion efficiency and may restrict its applic...

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Bibliographic Details
Main Authors: Nian-Mu Wang, Huang Huang, Chao Zhang
Format: Article
Language:English
Published: AIP Publishing LLC 2021-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0052800