| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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An All-Optical Diode Based on Plasmonic Attenuation and Nonlinear Frequency Conversion |
| REN Ming-Liang, ZHONG Xiao-Lan, CHEN Bao-Qin, LI Zhi-Yuan** |
Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, P. O. Box 603, Beijing 100190
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| Cite this article: |
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REN Ming-Liang, ZHONG Xiao-Lan, CHEN Bao-Qin et al 2013 Chin. Phys. Lett. 30 097301 |
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Abstract We present the design of an all-optical diode in a metal-dielectric structure where plasmonic attenuation and quasi-phase-matching are harnessed to greatly improve its performance. Due to the asymmetric design of the second-order nonlinear coefficient, different incident directions will ignite different plasmonic nonlinear processes, which compensate or accelerate plasmonic attenuation. As a result, a unidirectional output of plasmonic signal is achieved. This designed all-optical diode shows advantages of low power consumption, short sample length, high isolation contrast, wide acceptance of structural and initial conditions, and tunable unidirectionality, and becomes of practical interest.
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Received: 24 May 2013
Published: 21 November 2013
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| PACS: |
73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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42.70.Mp
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(Nonlinear optical crystals)
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