A plasmonic nanolens with metallic nano-slits thin film

Chunlei Du; Changtao Wang; Xiangang Luo; Junxian Ma; Yongqi Fu; Haofei Shi; Hongtao Gao; Xiaochun Dong

doi:10.1117/12.616322

26 August 2005 A plasmonic nanolens with metallic nano-slits thin film

Chunlei Du, Changtao Wang, Xiangang Luo, Junxian Ma, Yongqi Fu, Haofei Shi, Hongtao Gao, Xiaochun Dong

Proceedings Volume 5927, Plasmonics: Metallic Nanostructures and Their Optical Properties III; 59271F (2005) https://doi.org/10.1117/12.616322
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

Chunlei Du, Changtao Wang, Xiangang Luo, Junxian Ma, Yongqi Fu, Haofei Shi, Hongtao Gao, and Xiaochun Dong "A plasmonic nanolens with metallic nano-slits thin film", Proc. SPIE 5927, Plasmonics: Metallic Nanostructures and Their Optical Properties III, 59271F (26 August 2005); https://doi.org/10.1117/12.616322

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available