Electrically controllable unidirectional transmission in a heterostructure composed of a photonic crystal and a deformable liquid droplet |
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| Authors: | Jie Luo Ping Xu Lei Gao |
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| Institution: | 1. The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, People’s Republic of China;2. College of Mechanical and Dynamic Engineering, Chongqing University of Science and Technology, Chongqing 401331, People’s Republic of China;3. Institute of Structural Mechanics, China Academy of Engineering Physics, Mianyang 621900, People’s Republic of China;1. National Engineering Laboratory for Fiber Optical Sensing Technology, Wuhan University of Technology, Wuhan 430070, China;2. Department of Physics, Wuhan University of Technology, Wuhan 430070, China;1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People’s Republic of China;3. College of Physics, Jilin University, Changchun 130012, People’s Republic of China;1. College of Physics, Optoelectronics and Energy of Soochow University, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China;2. Department of Physics and Electronic Engineering, Changshu Institute of Technology, Changshu 215500, China;1. Faculty of Electrical Engineering and Information Technology, TU Chemnitz, Reichenhainer Str. 70, 09126 Chemnitz, Germany;2. Fraunhofer ENAS, Technologie-Campus 3, 09126 Chemnitz, Germany;3. Robert Bosch GmbH, Robert-Bosch-Campus 1, 71272 Renningen, Germany |
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| Abstract: | We propose a new method to realize the tunable unidirectional behavior using a heterostructure composed of a one-dimensional photonic crystal and a deformable liquid droplet. We can control the occurrence of the unidirectional behavior in the heterostructure by adjusting the voltage applied on the liquid system. It is demonstrated that when the voltage is not applied most of incident-wave energy can be transmitted through the heterostructure for backward lights. While the forward lights can’t be transmitted, if the voltage is high enough, the one-way behavior disappears. The applied voltage to control the one-way behavior may be relatively low. Thereby, we can expect that the heterostructure may have potential applications in optical devices. |
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