High Difference-Frequency Generation in SiO2/MnF2/Ag Sandwich Structures
In this work, a simple antiferromagnetic (AF) sandwich structure is proposed to increase the difference-frequency (DF) outputs, where a noble metal, Ag layer, is put under an AF film. Numerical calculations are based on the SiO2/MnF2/Ag sandwich structure, where
MnF2 is a typical AF material. We found that the DF outputs on the above surface are increased at least two orders which compared with those of MnF2 film. The continuous DF windows show that the outputs decrease with the increasing incident angles. The effect of the external
magnetic field on DF outputs is also discussed.
Keywords: Antiferromagnetic Material; Difference-Frequency Generation; Magnetic Field; Nonlinear Response
Document Type: Research Article
Affiliations: Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China
Publication date: 01 June 2018
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