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Title: A naturally grown three-dimensional nonlinear photonic crystal

Nonlinear frequency conversion via three-dimensional (3D) quasi-phase matching (QPM) process is experimentally realized based on a Ba{sub 0.77}Ca{sub 0.23}TiO{sub 3} (BCT) crystal. The ferroelectric domains in BCT crystal are observed, and the results reveal that the antiparallel domains distribute in three dimensions and can provide 3D reciprocal lattice vectors for QPM processes. Broadband petal-like second-harmonic patterns are achieved, which are well consistent with the theoretical quasi-cubic model of 3D nonlinear photonic crystals. Our work not only promotes the development of QPM technique but also builds a platform for 3D nonlinear optics and quantum optics.
Authors:
; ; ; ;  [1] ;  [2]
  1. State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100 (China)
  2. National Laboratory of Solid State Microstructures, School of Physics, and College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093 (China)
Publication Date:
OSTI Identifier:
22489403
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 108; Journal Issue: 5; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CRYSTALS; FERROELECTRIC MATERIALS; NONLINEAR OPTICS; NONLINEAR PROBLEMS; QUANTUM OPTICS; TETRAGONAL LATTICES