News tagged with optical
Transparent iron? For the first time, an experiment shows that atomic nuclei can become transparent
At the high-brilliance synchrotron light source PETRA III, a team of DESY scientists headed by Dr. Ralf Röhlsberger has succeeded in making atomic nuclei transparent with the help of X-ray light. At the ...
Feb 08, 2012 |
4.8 / 5 (11) |
3
|
Physicists build highly efficient 'no-waste' laser
A team of University of California, San Diego researchers has built the smallest room-temperature nanolaser to date, as well as an even more startling device: a highly efficient, "thresholdless" laser that ...
Feb 08, 2012 |
4.9 / 5 (20) |
5
|
Stress pathway identified as potential therapeutic target to prevent vision loss
A new study identifies specific cell-stress signaling pathways that link injury of the optic nerve with irreversible vision loss. The research, published by Cell Press in the February 9 issue of the journal Neuron, may le ...
Medicine & Health / Neuroscience
Feb 08, 2012 |
not rated yet |
0
|
Flipping a light switch in the cell: Quantum dots used for targeted neural activation
By harnessing quantum dots—tiny light-emitting semiconductor particles a few billionths of a meter across—researchers at the University of Washington (UW) have developed a new and vastly more targeted ...
Feb 08, 2012 |
5 / 5 (7) |
1
|
Governor Kasich announces 10-fold boost to Ohio's broadband network
Ohio will soon see a ten-fold boost to its broadband network speeds, which will benefit research and job-creating assets statewide. Governor John R. Kasich made the announcement at his State of the State address in Steubenville ...
Feb 07, 2012 |
not rated yet |
0
ESO team succeeds in linking telescopes at Paranal Observatory into giant VLT
(PhysOrg.com) -- Researchers working as part of the European Southern Observatory (ESO) at the Cerra Paranal Mountain Observatory in the Atacama Desert in Chile, have succeeded in virtually connecting all ...
Feb 06, 2012 |
4.9 / 5 (17) |
2
|
Crystalline materials enable high-speed electronic function in optical fibers
Scientists at the University of Southampton, in collaboration with Penn State University have, for the first time, embedded the high level of performance normally associated with chip-based semiconductors ...
Feb 05, 2012 |
4.7 / 5 (14) |
3
|
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 |
not rated yet |
0
Physics team calculates that graphene disks could be complete optical absorbers
(PhysOrg.com) -- In optical devices designed and used to collect light, there has always been a loss of light due to reflection, now, new research by a team of physicists from Spain and England has found, ...
Feb 01, 2012 |
5 / 5 (2) |
0
|
Ultra-fast photodetector and terahertz generator
Photodetectors made from graphene can process and conduct light signals as well as electric signals extremely fast. Within picoseconds the optical stimulation of graphene generates a photocurrent. Until now, ...
Jan 31, 2012 |
5 / 5 (9) |
0
|
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 |
5 / 5 (11) |
1
|
Study finds 'cool' gas may form and strengthen sunspots
Hydrogen molecules may act as a kind of energy sink that strengthens the magnetic grip that causes sunspots, according to scientists from Hawaii and New Mexico using a new infrared instrument on an old telescope.
Jan 31, 2012 |
5 / 5 (1) |
1
|
Researchers demonstrate rare combination of electric and magnetic properties in strontium barium manganite
An electric field can displace the cloud of electrons surrounding each atom of a solid. In an effect known as polarization, the cloud centers move away slightly from the positively charged nuclei, which radically ...
Jan 27, 2012 |
5 / 5 (3) |
1
Researchers observe speed of propagation in non-relativistic lattice
(PhysOrg.com) -- A team of researchers have devised a means for observing the speed with which quasiparticles can travel through an optical lattice. The experiment performed at the Max-Planck-Institut für ...
Jan 26, 2012 |
5 / 5 (4) |
2
|
Speed limit on the quantum highway
(PhysOrg.com) -- Physicists at the Max Planck Institute of Quantum Optics have measured the propagation velocity of quantum signals in a many-body system.
Jan 26, 2012 |
4.9 / 5 (15) |
0
|
