CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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High sum-frequency generation in dielectric/antiferromagnet/Ag sandwich structures |
Fu Shu-Fang (付淑芳)a, Liang Hong (梁红)b c, Zhou Sheng (周胜)a, Wang Xuan-Zhang (王选章)a |
a Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China; b School of Electric Engineering, Harbin University of Science and Technology, Harbin 150080, China; c School of Science, Harbin University, Harbin 150086, China |
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Abstract We present a method to increase the sum-frequency (SF) outputs in dielectric/antiferromagnet(AF)/Ag sandwich structures for a fixed input power. Two incident waves simultaneously illuminate the upper surface, one is oblique and the other is normal to it. Numerical calculations based on the SiO2/MnF2/Ag and ZnF2/MnF2/Ag structures show that the SF outputs on the upper film increase a few times as compared to those of a single AF film when the thickness of the AF film is one-quarter of the vacuum wavelength. Moreover, the SF outputs generated near the higher resonant frequency will be higher than those obtained near the lower resonant frequency. An optimum AF film thickness is achieved through investigating its effect on the SF outputs in the two different dielectric sandwich structures.
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Received: 15 August 2013
Revised: 31 October 2013
Accepted manuscript online:
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PACS:
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75.50.Ee
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(Antiferromagnetics)
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78.20.-e
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(Optical properties of bulk materials and thin films)
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Fund: Project supported by the Young Academic Back-bone of Education Commission of Heilongjiang Province, China (Grant Nos. 1251G030 and12521154) and the National Natural Science Foundation of China (Grant Nos. 11104050, 11204056, and 11074061). |
Corresponding Authors:
Fu Shu-Fang
E-mail: shufangfu@yahoo.com
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About author: 75.50.Ee; 78.20.-e |
Cite this article:
Fu Shu-Fang (付淑芳), Liang Hong (梁红), Zhou Sheng (周胜), Wang Xuan-Zhang (王选章) High sum-frequency generation in dielectric/antiferromagnet/Ag sandwich structures 2014 Chin. Phys. B 23 057503
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