Plasmonic resonance shift for various nanodevice geometries

David A. French; Stephen J. Bauman; Ahmad Darweesh; Desalegn Debu; Pijush K. Ghosh; Joseph B. Herzog

doi:10.1117/12.2224203

25 May 2016 Plasmonic resonance shift for various nanodevice geometries

David A. French, Stephen J. Bauman, Ahmad Darweesh, Desalegn Debu, Pijush K. Ghosh, Joseph B. Herzog

Author Affiliations +

Proceedings Volume 9836, Micro- and Nanotechnology Sensors, Systems, and Applications VIII; 98362X (2016) https://doi.org/10.1117/12.2224203
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

Abstract

Plasmonic nanodevices are metallic structures that exhibit plasmonic effects when exposed to light, causing scattering and enhancement of that light. These plasmons makes it possible for light to be focused below the diffraction limit. Dark-field spectroscopy has been used to capture the scattering spectra of these structures in order to examine the scattering and resonant frequencies of the plasmons provided by the devices. The geometries of the devices change which wavelengths of light are most readily able to couple to the device, resulting in a change in the wavelength of the scattered light. A variety of device geometries and configurations will be studied, including nanodiscs, nanowires, and plasmonic gratings, along with double-width nanogap plasmonic gratings. These new structures will have features below the fabrication limit of electron-beam lithography, i.e. sub-10 nanometer features. The polarization dependencies of these resonance modes are investigated as well. A relation between device geometry and wavelength will be drawn; in effect, this will allow the selection of geometry of the fabricated device based on the desired wavelength of light to be scattered. Preliminary Raman spectroscopy will also be performed in order to study the device response and usefulness for surface-enhanced Raman spectroscopy.

Citation Download Citation

David A. French, Stephen J. Bauman, Ahmad Darweesh, Desalegn Debu, Pijush K. Ghosh, and Joseph B. Herzog "Plasmonic resonance shift for various nanodevice geometries", Proc. SPIE 9836, Micro- and Nanotechnology Sensors, Systems, and Applications VIII, 98362X (25 May 2016); https://doi.org/10.1117/12.2224203

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Light scattering

Plasmonics

Nanostructures

Scattering

Raman scattering

Gold

CMOS cameras

Show All Keywords

Keywords/Phrases

Search In:

Publication Years