论文信息 - Plasmonic Lens Based on Elliptically Tapered Metallic Nano Slits

Plasmonic Lens Based on Elliptically Tapered Metallic Nano Slits

Plasmonic lens using elliptically tapered nanoslits in a gold film to focus light is proposed. Two lenses with designed focal lengths of 2μm and 4μm respectively at 650nm were studied. Simulation results show that the intensity at the focal point of the proposed lens is enhanced as compared to a conventional plasmonic planar lens.

U. Aparna | M. Sathish Kumar | H. S. Mruthyunjaya | M. S. Kumar | U. Aparna

[1] B. Maes,et al. Enhanced optical transmission through tapered metallic gratings , 2012 .

[2] Domenico de Ceglia,et al. Plasmonic band edge effects on the transmission properties of metal gratings , 2011 .

[3] Qingzhen Hao,et al. Beam bending via plasmonic lenses. , 2010, Optics express.

[4] Jean-Pierre Berenger,et al. A perfectly matched layer for the absorption of electromagnetic waves , 1994 .

[5] Qihuang Gong,et al. Highly efficient nanofocusing based on a T-shape micro-slit surrounded with multi-slits. , 2012, Optics express.

[6] Malin Premaratne,et al. Improved transmission model for metal-dielectric-metal plasmonic waveguides with stub structure. , 2010, Optics express.

[7] H. Zappe,et al. Effect of lens size on the focusing performance of plasmonic lenses and suggestions for the design. , 2011, Optics express.

[8] Zheng Gaige,et al. Optical phase front control in a metallic grating with equally spaced alternately tapered slits , 2013 .

[9] Changtao Wang,et al. Beam manipulating by metallic nano-slits with variant widths. , 2005, Optics express.

[10] Sergey I. Bozhevolnyi,et al. Field enhancement and extraordinary optical transmission by tapered periodic slits in gold films , 2011 .