News tagged with plasmonic
'Dark plasmons' transmit energy
Microscopic channels of gold nanoparticles have the ability to transmit electromagnetic energy that starts as light and propagates via "dark plasmons," according to researchers at Rice University.
Feb 09, 2012 |
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Researchers efficiently couple light from a plane wave into a surface plasmon mode
Researchers from the NIST Center for Nanoscale Science and Technology have made a grating coupler that transmits over 45 % of the incident optical energy from a plane wave into a single surface plasmon polariton (SPP) mode ...
Feb 02, 2012 |
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Microscopy reveals 'atomic antenna' behavior in graphene
Atomic-level defects in graphene could be a path forward to smaller and faster electronic devices, according to a study led by researchers at the Department of Energy's Oak Ridge National Laboratory.
Nanotechnology / Nanomaterials
Jan 31, 2012 |
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Biochip measures glucose in saliva, not blood
For the 26 million Americans with diabetes, drawing blood is the most prevalent way to check glucose levels. It is invasive and at least minimally painful. Researchers at Brown University are working on a ...
Jan 23, 2012 |
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'Plasmonic nanoantennas' show promise in optical innovations
(PhysOrg.com) -- Researchers have shown how arrays of tiny "plasmonic nanoantennas" are able to precisely manipulate light in new ways that could make possible a range of optical innovations such as more powerful ...
Dec 22, 2011 |
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Plasmonic device converts light into electricity
(PhysOrg.com) -- While the most common device for converting light into electricity may be photovoltaic (PV) solar cells, a variety of other devices can perform the same light-to-electricity conversion, such ...
Nov 09, 2011 |
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Nanoparticle imaging: A resonant improvement
Raman spectroscopy is a powerful technique for analyzing atomic structure based on the inelastic scatter of light from molecules, with diverse applications including medical imaging and chemical sensing. Researchers ...
Nanotechnology / Bio & Medicine
Oct 28, 2011 |
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Nanobelts support manipulation of light
(PhysOrg.com) -- They look like 2-by-4s, but the materials being created in a Rice University lab are more suited to construction with light.
Oct 14, 2011 |
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World’s first 3D plasmon ruler: Taking the 3-D measure of macromolecules
(PhysOrg.com) -- The world's first three-dimensional plasmon rulers, capable of measuring nanometer-scale spatial changes in macrmolecular systems, have been developed by researchers with the U.S. Department ...
Jun 16, 2011 |
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Periodic structures in organic light-emitters can efficiently enhance, replenish surface plasmon waves
The irradiation of a metal surface with light or electrons can result in the formation of coherent electronic oscillations called surface plasmons, an effect ideal for applications such as optical communications ...
Jun 10, 2011 |
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Sharpening the nanofocus: Researchers use nanoantenna to enhance plasmonic sensing
(PhysOrg.com) -- Such highly coveted technical capabilities as the observation of single catalytic processes in nanoreactors, or the optical detection of low concentrations of biochemical agents and gases ...
May 17, 2011 |
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Measurement of 'hot' electrons could have solar energy payoff
(PhysOrg.com) -- Basic scientific curiosity paid off in unexpected ways when Rice University researchers investigating the fundamental physics of nanomaterials discovered a new technology that could dramatically ...
May 05, 2011 |
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Highly sensitive graphene biosensors based on surface plasmon resonance
Adding a few graphene layers onto the conventional gold-film SPR biosensor will boost up its sensitivity dramatically. The improved sensitivity comes from the graphene layer’s increased adsorption of ...
May 05, 2011 |
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New kid on the plasmonic block
With its promise of superfast computers and ultrapowerful optical microscopes among the many possibilities, plasmonics has become one of the hottest fields in high-technology. However, to date plasmonic properties ...
Apr 18, 2011 |
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Researchers discover way to create true-color 3-D holograms
(PhysOrg.com) -- Satoshi Kawata, Miyu Ozaki and their team of photonics physicists at Osaka University in Japan, have figured out a way to capture the original colors of an object in a still 3-D hologram by ...
Apr 08, 2011 |
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