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

Harris & Harris Group Notes Announcements by Its Portfolio Companies During the Third Quarter of 2016 September 30th, 2016

INVECAS to Enable ASIC Designs for Tomorrows Intelligent Systems on GLOBALFOUNDRIES' FDX Technology: INVECAS to Collaborate with GLOBALFOUNDRIES to Provide IP and End-to-End ASIC Design Services on 22FDX and 12FDX Technologies September 30th, 2016

How to power up graphene implants without frying cells: New analysis finds way to safely conduct heat from graphene to biological tissues September 30th, 2016

Innovation in Nanotechnology is Focus of Symposium: Annual event brings international experts to Northwestern Oct. 6 September 29th, 2016

Chemistry

Chains of nanogold forged with atomic precision September 23rd, 2016

Carbon-coated iron catalyst structure could lead to more-active fuel cells September 15th, 2016

Researchers build world's largest database of crystal surfaces and shapes September 14th, 2016

On-surface chemistry leads to novel products: On-surface chemical Reactions can lead to novel chemical compounds not yet synthesized by solution chemistry. September 13th, 2016

Sensors

How to power up graphene implants without frying cells: New analysis finds way to safely conduct heat from graphene to biological tissues September 30th, 2016

Nanosensors could help determine tumors ability to remodel tissue: Measuring enzyme levels could help doctors select appropriate treatments September 29th, 2016

Cambrios at CEATEC - Japan 2016 September 29th, 2016

Leti and Taiwanese Tech Organizations Sponsoring Workshop in Taipei on MEMS, IoT, Smart Lighting Applications, System Reliability & Security September 28th, 2016

Discoveries

How to power up graphene implants without frying cells: New analysis finds way to safely conduct heat from graphene to biological tissues September 30th, 2016

Nanosensors could help determine tumors ability to remodel tissue: Measuring enzyme levels could help doctors select appropriate treatments September 29th, 2016

Fighting cancer with sticky nanoparticles September 27th, 2016

Gold nanoparticles conjugated quercetin inhibits epithelial-mesenchymal transition, angiogenesis and invasiveness via EGFR/VEGFR-2 mediated pathway in breast cancer September 27th, 2016

Announcements

Harris & Harris Group Notes Announcements by Its Portfolio Companies During the Third Quarter of 2016 September 30th, 2016

INVECAS to Enable ASIC Designs for Tomorrows Intelligent Systems on GLOBALFOUNDRIES' FDX Technology: INVECAS to Collaborate with GLOBALFOUNDRIES to Provide IP and End-to-End ASIC Design Services on 22FDX and 12FDX Technologies September 30th, 2016

How to power up graphene implants without frying cells: New analysis finds way to safely conduct heat from graphene to biological tissues September 30th, 2016

Innovation in Nanotechnology is Focus of Symposium: Annual event brings international experts to Northwestern Oct. 6 September 29th, 2016

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







Car Brands
Buy website traffic