Transmission of microwave radiation through a sub-wavelength slit with internal structure

Matthew J. Lockyear; Alastair P. Hibbins; J. Roy Sambles

doi:10.1117/12.780588

6 May 2008 Transmission of microwave radiation through a sub-wavelength slit with internal structure

Matthew J. Lockyear, Alastair P. Hibbins, J. Roy Sambles

Proceedings Volume 6987, Metamaterials III; 69871V (2008) https://doi.org/10.1117/12.780588
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

Fabry-Perot cavities are perhaps the best known of the optical transmission resonators, with cavity field enhancement accomplished by two parallel and partially reflecting planes. Recently it has been shown that arrays of narrow slits cut into a metal substrate are similarly able to exhibit resonant transmission modes. Here, the transmission of normally incident plane wave microwaves through a single stepped sub-wavelength slit in a thick metal plate is explored. The presence of the step substantially increases the radiation wavelength, which may be resonantly transmitted to well beyond twice the plate thickness. Insight into the resonant behaviour of the stepped slit is provided through the analysis of the field solutions produced by a finite element model. This model also predicts resonant transmission which is in excellent agreement with the experimental results.

Citation Download Citation

Matthew J. Lockyear, Alastair P. Hibbins, and J. Roy Sambles "Transmission of microwave radiation through a sub-wavelength slit with internal structure", Proc. SPIE 6987, Metamaterials III, 69871V (6 May 2008); https://doi.org/10.1117/12.780588

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