Surface waves at the interface between a metal and a photovoltaic-photorefractive crystal |
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| Authors: | Kehao Li Keqing Lu Yiqi Zhang Juanli Hui Pingjuan Niu Liyuan Yu Yanpeng Zhang |
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| Institution: | 1. Department of Electronic Communication Engineering, Henan Mechanical and Electrical Engineering College, Pingyuan Road Xinxiang 453000, China;2. School of Electronics and Information Engineering, Tianjin Polytechnic University , Tianjin 300387, China;3. Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi’an Jiaotong University, Xi’an 710049, China;4. State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academic of Sciences, Xi’an 710119, China |
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| Abstract: | We investigate surface waves at the interface between a metal and a photovoltaic-photorefractive (PP) crystal. These surface waves appear in several forms: delocalized surface waves, shock surface waves, and localized surface waves. Only localized surface waves have limited energy. We demonstrate that the transverse sizes of localized surface waves decrease with an increase in the propagation constant and the amplitudes of localized surface waves increase with the propagation constant. The stability of localized surface waves is investigated numerically and it is found that they are stable. |
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| Keywords: | Surface waves Photorefractive nonlinearity Nonlinear optics |
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