Plasmonic switch based on asymmetric cavities with embedding square of gold inside the cavities

IF 1.1 4区 物理与天体物理 Q4 NANOSCIENCE & NANOTECHNOLOGY
Majid Ghadrdan, Mojtaba Shahraki, Mohammad Ali Mansouri-Birjandi
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引用次数: 0

Abstract

We proposed an all-optical plasmonic switch based on metal-insulator-metal structures. We used the intrinsic nonlinear properties of gold to implement the switch. The proposed switch consists of a bus waveguide side coupled with a pair of asymmetric vertical cavities. We obtained the transmission spectrum of the structure for low input intensities. The results showed that a sharp dip occurs at the wavelength of 860 nm. Due to the nonlinear properties of gold and the nonlinear Kerr effects, the proposed switch has a high transmission ratio of about 0.8 mW / μm2 and a low threshold power of 0.07 mW / μm2. The threshold power of the structure with and without using the gold nanostructure shows a reduction of 50%. The result showed that the proposed switch has the potential to be applied in the plasmonic integration circuits.
基于非对称腔体的等离子体开关,在腔体内嵌入正方形金
提出了一种基于金属-绝缘体-金属结构的全光等离子体开关。我们利用黄金固有的非线性特性来实现这种转换。所提出的开关由一个总线波导侧与一对不对称垂直腔耦合组成。我们得到了低输入强度下结构的透射谱。结果表明,在860nm波长处出现了一个急剧的下降。由于金的非线性特性和非线性Kerr效应,该开关具有高传输率(约0.8 mW / μm2)和低阈值功率(0.07 mW / μm2)。与未使用金纳米结构相比,该结构的阈值功率降低了50%。结果表明,该开关具有应用于等离子体集成电路的潜力。
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来源期刊
Journal of Nanophotonics
Journal of Nanophotonics 工程技术-光学
CiteScore
2.60
自引率
6.70%
发文量
42
审稿时长
3 months
期刊介绍: The Journal of Nanophotonics publishes peer-reviewed papers focusing on the fabrication and application of nanostructures that facilitate the generation, propagation, manipulation, and detection of light from the infrared to the ultraviolet regimes.
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