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Search results for plasmonic

Bio & Medicine Sep 24, 2019

Plasmonic silver nanoparticles advance toward ultrafast single-molecule detection

Detection of ultralow concentrations of substances requires devices that can provide ultrafast information processing and offer high detection limits. Plasmonic metal nanoparticles, especially those made of gold and silver, ...

Nanophysics Sep 23, 2019

Researchers develop new framework for nanoantenna light absorption

Harnessing light's energy into nanoscale volumes requires novel engineering approaches to overcome a fundamental barrier known as the "diffraction limit." However, University of Illinois researchers have breached this barrier ...

Nanophysics Sep 17, 2019

Colloidal nanotweezers are new tool for advanced particle manipulation

Tools for manipulating small suspended particles such as cells, micro-particles and nanoparticles play an essential role in the advancement of fundamental science and discovery of new technologies. Especially, manipulation ...

Condensed Matter Sep 16, 2019

Researchers use laser light to transform metal into magnet

Pioneering physicists from the University of Copenhagen and Nanyang Technological University in Singapore have discovered a way to get non-magnetic materials to make themselves magnetic by way of laser light. The phenomenon ...

Nanomaterials Sep 4, 2019

'Resonance' raman spectroscopy with 1-nanometer resolution

Tip-enhanced Raman spectroscopy resolved "resonance" Raman scattering with 1-nm resolution in ultrathin zinc oxide films epitaxially grown on a single-crystal silver surface. Tip-enhanced "resonance" Raman scattering can ...

Optics & Photonics Sep 3, 2019

Narrow plasmonic surface lattice resonances prefer asymmetric dielectric environment

Plasmonic nanostructures have been widely used for enhancing light-matter interactions due to the strong local field enhancement in deep subwavelength volumes.

Nanophysics Sep 2, 2019

Direct microscopy imaging reveals details in DNA origami nanostructures

Scientists at the U.S. Department of Energy's Ames Laboratory are now able to see greater details of DNA origami nanostructures, which will lead to a greater understanding and control of their assembly for future applications.

Plasma Âé¶¹ÒùÔºics Aug 30, 2019

Quantum engineering atomically smooth single-crystalline silver films

Ultra-low-loss metal films with high-quality single crystals are in demand as the perfect surface for nanophotonics and quantum information processing applications. Silver is by far the most preferred material due to low-loss ...

Nanophysics Aug 30, 2019

Directional plasmon excitation at molecular scales

NUS scientists have developed a method for directional excitation of plasmons at molecular length scale with electrically driven sources. Photonic devices which make use of light can transmit information much faster than ...

Materials Science Aug 29, 2019

Better chemistry through tiny antennae

A research team at The University of Tokyo has introduced a powerful method for actively breaking chemical bonds using excitations in tiny antennae created by infrared lasers. This process may have applications throughout ...

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