Transmission characteristics and applications of plasmonic slit waveguide based on metal-insulator-metal structure

Kunhua Wen; Lianshan Yan; Wei Pan; Bin Luo; Zhen Guo; Yinghui Guo

doi:10.1117/1.OE.51.10.104601

3 October 2012 Transmission characteristics and applications of plasmonic slit waveguide based on metal-insulator-metal structure

Kunhua Wen, Lianshan Yan, Wei Pan, Bin Luo, Zhen Guo, Yinghui Guo

Author Affiliations +

Optical Engineering, Vol. 51, Issue 10, 104601 (October 2012). https://doi.org/10.1117/1.OE.51.10.104601

Abstract

The propagation characteristics of the surface plasmon waves supported inside the metal-insulator-metal (MIM) waveguide are studied. The resonance wavelengths are significantly related to the effective index of the mode in the slit and the length of the slit. Actually, the effective index is defined by the width of the slit and the relative permittivity of the metal and the insulator. When the effective index is obtained, the resonance wavelengths in the MIM waveguide can be estimated. Furthermore, a series of slot cavities, which perform as the drop waveguides, can be designed in the MIM waveguide with the positions of half of the resonance wavelengths. The resonance wavelengths can be coupled out from the corresponding slot cavities. Therefore, a plasmonic filter with multiple exports that respectively supply a specific pass band is achieved. The device can be developed as an optical demultiplexing component.

Citation Download Citation

Kunhua Wen, Lianshan Yan, Wei Pan, Bin Luo, Zhen Guo, and Yinghui Guo "Transmission characteristics and applications of plasmonic slit waveguide based on metal-insulator-metal structure," Optical Engineering 51(10), 104601 (3 October 2012). https://doi.org/10.1117/1.OE.51.10.104601

Published: 3 October 2012

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