ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Porous Three Dimensional Arrays of Plasmonic Nanoparticles

Singh, Haobijam Johnson and Ghosh, Ambarish (2012) Porous Three Dimensional Arrays of Plasmonic Nanoparticles. In: JOURNAL OF PHYSICAL CHEMISTRY C, 116 (36). pp. 19467-19471.

[img] PDF
jou_phy_che_116-36_19467_2012.pdf - Published Version
Restricted to Registered users only

Download (2MB) | Request a copy
[img] PDF
jp3062702_si_001.pdf - Published Supplemental Material
Restricted to Registered users only

Download (157kB) | Request a copy
Official URL: http://dx.doi.org/10.1021/jp3062702

Abstract

Plasmonic interactions in a well-defined array of metallic nanoparticles can lead to interesting optical effects, such as local electric field enhancement and shifts in the extinction spectra, which are of interest in diverse technological applications, including those pertaining to biochemical sensing and photonic circuitry. Here, we report on a single-step wafer scale fabrication of a three-dimensional array of metallic nanoparticles whose sizes and separations can be easily controlled to be anywhere between fifty to a few hundred nanometers, allowing the optical response of the system to be tailored with great control in the visible region of the spectrum. The substrates, apart from having a large surface area, are inherently porous and therefore suitable for optical sensing applications, such as surface enhanced Raman scattering, containing a high density of spots with enhanced local electric fields arising from plasmonic couplings.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the American Chemical Society
Department/Centre: Division of Interdisciplinary Research > Centre for Nano Science and Engineering
Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 11 Jan 2013 09:13
Last Modified: 11 Jan 2013 09:13
URI: http://eprints.iisc.ac.in/id/eprint/45272

Actions (login required)

View Item View Item