Gain-assisted optical switching in plasmonic nanocavities |
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| Authors: | Yun Shen Guoping Yu Jiwu Fu and Liner Zou |
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| Institution: | 1Department of Physics, Nanchang University, Nanchang 330031, China 2Key Laboratory of Acoustic and Photonic Materials and Devices, Ministry of Education, Department of Physics, Wuhan University, Wuhan 430072, China |
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| Abstract: | A plasmonic cavity filled with active material is proposed to explain optical switching. Optical properties, including transmission, response time, and field distribution of on/off state, are numerically investigated. We demonstrate that such a gain-assisted plasmonic structure can achieve optical switching in the nan- odomain and shorten the switching time to the subpicosecond level. Our results indicate the potential application of the proposed structure in optical communication and photonic integrated circuits. |
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