Dispersion analysis of subwavelength square apertures at optical frequencies

Eli Lansey; Jonah N. Gollub; David T. Crouse

doi:10.1117/12.908756

28 February 2012 Dispersion analysis of subwavelength square apertures at optical frequencies

Eli Lansey, Jonah N. Gollub, David T. Crouse

Proceedings Volume 8255, Physics and Simulation of Optoelectronic Devices XX; 82550R (2012) https://doi.org/10.1117/12.908756
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We present an analytical study of resonance properties of square subwavelength apertures at optical and near-IR frequencies. This approach allows accurate prediction of resonance responses, captures both propagating and evanescent modes, and can easily be implemented in other analytical techniques. In this approach we avoid analyzing the detailed behavior of the fields inside the metal walls, but still obtain the effects of the buildup of charges within those walls. We calculate the dispersion relation and find the cutoff frequency's dependence on cavity dimensions for a square aperture embedded in a silver film, and support our findings with finite-element simulations.

Citation Download Citation

Eli Lansey, Jonah N. Gollub, and David T. Crouse "Dispersion analysis of subwavelength square apertures at optical frequencies", Proc. SPIE 8255, Physics and Simulation of Optoelectronic Devices XX, 82550R (28 February 2012); https://doi.org/10.1117/12.908756

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