Nanotechnology Now

Our NanoNews Digest Sponsors







Heifer International

Wikipedia Affiliate Button


Home > Press > Near-Field Enhancements along Ring-Shaped Nanostructures

The near-field enhancement on the surface of ring-shaped gold nanostructure becomes homogeneous through circularly polarized light.
The near-field enhancement on the surface of ring-shaped gold nanostructure becomes homogeneous through circularly polarized light.

Abstract:
Molecules close to metal nanostuctures which are illuminated by light exhibit a complex electic field. They experience electric forces along the field lines, which become very crowded in sharp regions of the nanostructures, such as corners or tips, and in the regions of high electron density. These regions of crowded field lines are called hotspots which are generally localized to small spots. If it would be possible to expand the local field enhancements to the whole sample surface, heating which limits the field enhancement could be avoided and the interaction with molecules would be increased.

Near-Field Enhancements along Ring-Shaped Nanostructures

Germany | Posted on September 20th, 2012

Ventsislav Valev (Katholieke Universiteit Leuven) and co-workers could now demonstrate that such near-field enhancements can be extended over an entire nanopatterned gold surface. The extension of the near-field is achieved by driving the electron density along ring-shaped nanostructures with circularly polarized light. They validated their concept by two sets of numerical simulations as well as by a clear experimental confirmation. The homogeneous field enhancement increases the interaction cross-section with molecules which will be useful for chemical and sensing applications.

The research was reported in Advanced Optical Materials, a new section in Advanced Materials dedicated to breakthrough discoveries and fundamental research in photonics, plasmonics, metamaterials, and more, covering all aspects of light-matter interactions.

####

For more information, please click here

Copyright © Wiley-VCH Materials Science Journals

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

To get Advanced Optical Materials email alerts click here:

Related News Press

News and information

Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013

Artificial Forest for Solar Water-Splitting: Berkeley Lab Researchers Report First Fully Integrated Artificial Photosynthesis Nanosystem May 17th, 2013

Moth-Inspired Nanostructures Take the Color Out of Thin Films May 17th, 2013

NIA Public Briefing: Nanotechnology and the Council of Europe May 17th, 2013

Chemistry

Iranian Scientists Use Pomegranate Juice to Produce Copper Iodide Nanostructure May 14th, 2013

Chemistry breakthrough sheds new light on illness and health May 12th, 2013

Researchers develop unique method for creating uniform nanoparticles May 6th, 2013

Four groups at the UJI set up a multidisciplinary cooperative research consortium to advance in medicine, energy and catalysis May 1st, 2013

Sensors

Advancements and developments of solid-state nanopores sensors May 16th, 2013

Imec and Renesas collaborate on ultra-low power short range radios: Collaboration will develop robust wireless solutions for future electronics May 16th, 2013

Physicists discover a new kind of friction: Friction in the nano-world May 16th, 2013

HELIOS Program Develops Complete Supply Chain for Integrating Photonics with CMOS Circuit via IC Fabrication Processes May 14th, 2013

Discoveries

Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013

Artificial Forest for Solar Water-Splitting: Berkeley Lab Researchers Report First Fully Integrated Artificial Photosynthesis Nanosystem May 17th, 2013

Moth-Inspired Nanostructures Take the Color Out of Thin Films May 17th, 2013

Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013

Announcements

Artificial Forest for Solar Water-Splitting: Berkeley Lab Researchers Report First Fully Integrated Artificial Photosynthesis Nanosystem May 17th, 2013

Moth-Inspired Nanostructures Take the Color Out of Thin Films May 17th, 2013

NIA Public Briefing: Nanotechnology and the Council of Europe May 17th, 2013

Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013

NanoNews-Digest
The latest news from around the world, FREE





  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More












ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project








abbigliamento uomo
Computer Accessories
© Copyright 1999-2013 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE