Distance, shape, and arrangement pattern dependence of the extinction spectra for hole arrays in a silver film

Haining Wang; Shengli Zou

doi:10.1117/12.730283

28 September 2007 Distance, shape, and arrangement pattern dependence of the extinction spectra for hole arrays in a silver film

Haining Wang, Shengli Zou

Author Affiliations +

Proceedings Volume 6642, Plasmonics: Nanoimaging, Nanofabrication, and Their Applications III; 66420R (2007) https://doi.org/10.1117/12.730283
Event: NanoScience + Engineering, 2007, San Diego, California, United States

Abstract

The extinction spectra of hole arrays in a silver film are investigated with discrete dipole approximation method. The influences of distances between holes to the extinction spectra are explored; the effects of shapes and sizes of holes on the extinction spectra are also probed. For holes of the same areas, simulations show that the holes with square and rectangular shapes exhibit more efficient couplings compared with the circular ones. The increased aspect ratios (length/width) of rectangular holes perpendicular to the polarization direction strengthen their couplings. The influences of hole distances to the extinction spectra are examined. In the simulations, the lattice areas of hole arrays are first kept to be a constant (400×400 nm²), and then allowed to be changed with one fixed edge length of the rectangular lattice arrays. The calculations indicate that the extinction resonance wavelengths are more sensitive to the hole spacings along the polarization direction. The distance variations perpendicular to the polarization direction only alter the strengths of the coupling between holes and show little impact to the resonance wavelengths.

Citation Download Citation

Haining Wang and Shengli Zou "Distance, shape, and arrangement pattern dependence of the extinction spectra for hole arrays in a silver film", Proc. SPIE 6642, Plasmonics: Nanoimaging, Nanofabrication, and Their Applications III, 66420R (28 September 2007); https://doi.org/10.1117/12.730283

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