Modified field confinement and enhanced optical forces in hybrid dielectric wedge tip-loaded plasmonic waveguide
Modified field confinement and enhanced optical forces in hybrid dielectric wedge tip-loaded plasmonic waveguide
复制标题
混合介电楔尖加载等离子体波导中的改进场限制和增强光学力
DOI:
10.1117/1.jnp.11.046015
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发表时间:
2017-12
影响因子:
1.5
通讯作者:
Shusen Xie
中科院分区:
文献类型:
--
作者:
Xiaogang Chen;Qijing Lu;Hongqin Yang;Xiang Wu;Shusen Xie
Abstract. We proposed and theoretically investigated a hybrid plasmonics waveguide consisting of a tiptilted quadrate nanowire, which was embedded in a low-permittivity dielectric and placed on a metal substrate with a small gap distance. Due to the corner effect, the hybrid mode with extremely local field enhancement has the long propagation length and strong coupling strength between the dielectric nanowire and metal. By employing the simulations with different geometric parameters, the proposed waveguide can obtain better performances than the previous hybrid plasmonics waveguide, particularly in the subwavelength confinement (as small as λ2/1600), long-range propagation (millimeter range), and optical trapping forces (2.12 pN/W). The use of a naturally dielectric wedge tip of quadrate nanowire that can be chemically synthesized provides an efficient approach to circumvent the fabrication difficulty of shape wedge tips. The present structure provides an excellent platform for nanophotonic waveguides, nanolasers, nanoscale optical tweezers, and biosensing.
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DOI:
--
发表时间:
2014
期刊:
--
影响因子:
--
作者:
Shuai Liu;Shang Sun;S. Xiao;Q. Song;Z. Gu;Kaiyang Wang
通讯作者:
Shuai Liu;Shang Sun;S. Xiao;Q. Song;Z. Gu;Kaiyang Wang
影响因子:
35
作者:
Oulton, R. F.;Sorger, V. J.;Zhang, X.
通讯作者:
Zhang, X.
影响因子:
1.5
作者:
Kalele, Suchita A.;Tiwari, Neha R.;Kulkarni, Sulabha K.
通讯作者:
Kulkarni, Sulabha K.
影响因子:
8.6
作者:
Choi, Hyeongrak;Heuck, Mikkel;Englund, Dirk
通讯作者:
Englund, Dirk
影响因子:
8.6
作者:
Xu, HX;Käll, M
通讯作者:
Käll, M