All Articles Tagged As: light

Small optical force can budge nanoscale objects (11/19/2009)

With a bit of leverage, Cornell researchers have used a very tiny beam of light with as little as 1 milliwatt of power to move a silicon structure up to 12 nanometers. That's enough to completely switch the optical properties of the structure from opaque to transparent. ...> Full Article

New nano color sorters from Molecular Foundry (11/17/2009)

Berkeley Lab researchers at the Molecular Foundry have created bowtie-shaped antennae that function as the first tunable nano color sorters, able to capture, filter and steer light at the nanoscale. ...> Full Article

Scientists trap light and sound vibrations together in nanocrystal (10/28/2009)

Researchers at the California Institute of Technology have created a nanoscale crystal device that, for the first time, allows scientists to confine both light and sound vibrations in the same tiny space. "This is a whole new concept," notes Oskar Painter, associate professor of applied physics at Caltech. Painter is the principal investigator on the paper describing the work, which was published in the online edition of the journal Nature. ...> Full Article

New nanolaser key to future optical computers and technologies (8/17/2009)

Researchers have created the tiniest laser since its invention nearly 50 years ago, paving the way for a host of innovations, including superfast computers that use light instead of electrons to process information, advanced sensors and imaging. ...> Full Article

Breaking barriers with nanoscale lasers (8/2/2009)

Demonstration of thinnest semiconductor laser holds promise of better computers and Internet access ...> Full Article

Team to study applicability of solar cell coatings (7/3/2009)

A project under way at the US Department of Energy's Savannah River National Laboratory will study how special coatings that mimic structures found in nature can increase the usefulness of solar energy as a vital part of the nation's future energy strategy. ...> Full Article

Researchers discover new fluorescent silicon nanoparticles (7/1/2009)

Research may ultimately track the uptake of drugs by the body's cells ...> Full Article

Scientists create nanoscale zipper cavity that responds to single photons of light (6/7/2009)

Device could be used for highly sensitive force detection, optical communications and more ...> Full Article

A breakthrough toward industrial production of fluorescent nanodiamonds (6/5/2009)

The laboratory Structure -- Activity of Normal and Pathologic Biomolecules-Inserm, in collaboration with the Material Center of Mines-ParisTech, the NRG-UMR 5060 CNRS/UTBM and the Physic Institute of Stuttgart University, discovered a novel route to fabricate fluorescent nanoparticles from diamond microcrystals. Results are published in Nanotechnology's June 10 issue. ...> Full Article

New nanocrystals show potential for cheap lasers, new lighting (5/12/2009)

For more than a decade, scientists have been frustrated in their attempts to create continuously emitting light sources from individual molecules because of an optical quirk called "blinking," but now scientists at the University of Rochester have uncovered the basic physics behind the phenomenon, and along with researchers at the Eastman Kodak Company, created a nanocrystal that constantly emits light. ...> Full Article

Physicists create world's smallest incandescent lamp (5/9/2009)

UCLA physicists have created the world's smallest incandescent lamp using a filament made from a single carbon nanotube only 100 atoms wide. Invisible to the untrained eye, the filament appears as a tiny point of light when the lamp is turned on. Even with the best optical microscope it is only just possible to resolve the nanotube's nonzero length. The team uses an electron microscope capable of atomic resolution to image the filament's true structure. ...> Full Article

Physicists receive big 'nano' grant (6/8/2008)

Queen's University professor is co-leader of new, $4.2-million nanotechnology research project. ...> Full Article

Team studies metal complex (10/9/2007)

An interdisciplinary team of nanotechnology researchers has unraveled some of the fundamental physics of a material that holds promise for light-emitting, flexible semiconductors. ...> Full Article