Scientists tailor light waves to desired frequencies

User rating: 4.6 / 5 after 61 vote(s)

The resonant frequency of a GaSb crystal lattice can be shifted by substituting some of the Ga and Sb atoms (representing one type of dipole) with B and P atoms (representing a different type of dipole). Image credit: Liao Chungpin et al.
The resonant frequency of a GaSb crystal lattice can be shifted by substituting some of the Ga and Sb atoms (representing one type of dipole) with B and P atoms (representing a different type of dipole). Image credit: Liao, Chungpin, et al.

The ability to control light is vital for many of today’s technologies, most notably in communications and advanced computing. For example, by using materials from mirrors to nanoparticles, scientists can alter light’s speed with refraction, use diffraction to bend light, use electric fields to rotate light’s polarization, and more.


Full story »
All News summaries from Physics news
All News summaries for June 14, 2007

Shielding for ambitious neutron experiment

1 hour ago | User rating: not rated yet
In science fiction stories it is either the inexhaustible energy source of the future or a superweapon of galactic magnitude: antimaterial. In fact, antimaterial can neither be found on Earth nor in space, is extremely complex ...

New Membrane Model May Unlock Secrets of Early-Stage Alzheimer's

Jul 23, 2008 | User rating: not rated yet
Researchers at the National Institute of Standards and Technology and three collaborating institutions are using a new laboratory model of the membrane surrounding neurons in the brain to study how a protein ...

Sandia to Demonstrate Hyperspectral Confocal Fluorescence Microscope

Jul 23, 2008 | User rating: not rated yet
Sandia National Laboratories will demonstrate a new hyperspectral confocal fluorescence microscope Friday, Aug. 8 from 9 a.m.-2 p.m. MDT in Bldg. 897 on Kirtland Air Force Base. This patent-protected and patent-pending technology ...

A 'New Dimension' at the LHC

Jul 22, 2008 | User rating: not rated yet
(PhysOrg.com) -- Later this year, the world's largest and most powerful particle accelerator, the Large Hadron Collider near Geneva, Switzerland, will begin operating, sending beams of protons hurling around circular tracks ...

Physicists shed light on key superconductivity riddle

Jul 21, 2008 | User rating: not rated yet
(PhysOrg.com) -- MIT physicists believe they have identified a mysterious state of matter that has been linked to the phenomenon of high-temperature superconductivity.
Goto Archive PhysOrg Forum Goto Archive Video Goto Archive Editorials Goto Archive Free Magazines Goto Archive Newsletter

News Archive