Optical bistability in metal-insulator-metal plasmonic waveguide with nanodisk resonator containing Kerr nonlinear medium.
Optical bistability in metal-insulator-metal plasmonic waveguide with nanodisk resonator containing Kerr nonlinear medium.
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DOI：
10.1364/ao.50.005287
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发表时间：
2011-09
期刊：
影响因子：
1.9
通讯作者：
Guoxi Wang;Hua Lu;Xueming Liu;Y. Gong;Leiran Wang
中科院分区：
文献类型：
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作者：
Guoxi Wang;Hua Lu;Xueming Liu;Y. Gong;Leiran Wang
数值研究了含克尔非线性介质的金属-绝缘体-金属波导中的光学双稳效应。结果表明，增强入射光强度引起的折射率的增加会导致共振波长的红移。在纳米盘腔中激发的局域共振场可以显著增强克尔非线性效应。此外，在所提出的结构中观察到一个明显的双稳态回路。这种非线性结构在高集成度光路的全光开关中有着重要的应用。
We numerically investigate the optical bistability effect in the metal-insulator-metal waveguide with a nanodisk resonator containing a Kerr nonlinear medium. It is found that the increase of the refractive index, which is induced by enhancing the incident intensity, can cause a redshift for the resonance wavelength. The local resonant field excited in the nanodisk cavity can significantly increase the Kerr nonlinear effect. In addition, an obvious bistability loop is observed in the proposed structure. This nonlinear structure can find important applications for all-optical switching in highly integrated optical circuits.