Jiang Houqiang, Liu Chen, Wang Pei, Zhang Douguo, Lu Yonghua, Ming Hai
Department of Optics and Optical Engineering, Anhui Key Laboratory of Optoelectronic Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China.
Opt Express. 2013 Feb 25;21(4):4752-7. doi: 10.1364/OE.21.004752.
In this paper, a high-Q/Veff gap-mode plasmonic Fabry-Perot nanocavity, which is composed of a silver nanowire on a flat silver substrate spaced by patterned dielectric distributed Bragg gratings, is investigated both analytically and numerically. The design parameters and properties of the nanocavity are exploited with the use of generalized Fabry-Perot model. The Veff ~0.0026 (λ/n)³ and Q/Veff ~1.4 × 10⁵/μm³ of the nanocavity can be achieved. Such a gap-mode plasmonic Fabry-Perot nanocavity design provides a promising realization for wide novel band filters and spaser.
在本文中，对一种高Q/Veff 间隙模式等离子体法布里 - 珀罗纳米腔进行了分析和数值研究，该纳米腔由平坦银衬底上的银纳米线组成，通过图案化介电分布布拉格光栅隔开。利用广义法布里 - 珀罗模型研究了纳米腔的设计参数和特性。该纳米腔可实现Veff约为0.0026(λ/n)³ 以及Q/Veff约为1.4×10⁵/μm³ 。这种间隙模式等离子体法布里 - 珀罗纳米腔设计为新型宽带滤波器和受激辐射放大的自发辐射源提供了一种很有前景的实现方式。
