Share Email Print
cover

Proceedings Paper

A plasmonic nanolens with metallic nano-slits thin film
Author(s): Chunlei Du; Changtao Wang; Xiangang Luo; Junxian Ma; Yongqi Fu; Haofei Shi; Hongtao Gao; Xiaochun Dong
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Metallic nano-slits film is proposed to implement beam manipulation, such as focusing, deflecting and imaging etc. The principle of this novel nano metric device, termed as plasmonic nano lens, is based on the different phase retardation of light when transmitted through a metallic film with arrayed nano-slits, which have constant depth but variant widths. The slits transport electro-magnetic energy in the form of surface plasmon polaritons (SPPs) in nanometric waveguides and provide desired phase retardations of beam manipulating with variant phase propagation constant. Numerical simulations of illustrative examples are performed through finite-difference time-domain (FDTD) method and show its validity as a lens and other potential photonic devices. In addition, extraordinary optical transmission of SPPs through sub-wavelength metallic slits is observed in the simulation and implies higher efficiency than usual binary devices featured with transparent and opaque regions.

Paper Details

Date Published: 26 August 2005
PDF: 6 pages
Proc. SPIE 5927, Plasmonics: Metallic Nanostructures and Their Optical Properties III, 59271F (26 August 2005); doi: 10.1117/12.616322
Show Author Affiliations
Chunlei Du, Institute of Optics and Electronics, CAS (China)
Changtao Wang, Institute of Optics and Electronics, CAS (China)
Xiangang Luo, Institute of Optics and Electronics, CAS (China)
Junxian Ma, Institute of Optics and Electronics, CAS (China)
Yongqi Fu, Institute of Optics and Electronics, CAS (China)
Haofei Shi, Institute of Optics and Electronics, CAS (China)
Hongtao Gao, Institute of Optics and Electronics, CAS (China)
Xiaochun Dong, Institute of Optics and Electronics, CAS (China)


Published in SPIE Proceedings Vol. 5927:
Plasmonics: Metallic Nanostructures and Their Optical Properties III
Mark I. Stockman, Editor(s)

© SPIE. Terms of Use
Back to Top