Most experiments that claim to show the quantum Zeno paradox fall short, study says
Two stopped light pulses interact with each other
Physicists describe how to make time-reversed light pulses
Proposal for optical transistor uses light to control light
Physicists show that superfluid light is possible
Single photon solid-state memory for telecommunications
'Temporal cloaking' could bring more secure optical communications
(Phys.org) —Researchers have demonstrated a method for "temporal cloaking" of optical communications, representing a potential tool to thwart would-be eavesdroppers and improve security for telecommunications.
New camera system creates high-resolution 3-D images from up to a kilometer away
(Phys.org) —A standard camera takes flat, 2-D pictures. To get 3-D information, such as the distance to a far-away object, scientists can bounce a laser beam off the object and measure how long it takes ...
All-optical magnetic switching promises terahertz-speed hard drive and RAM memory
(Phys.org) —Researchers at the Ames Laboratory, Iowa State University, and the University of Crete in Greece have found a new way to switch magnetism that is at least 1000 times faster than currently used ...
X-ray laser breakthrough research shows chemical reaction in real time
The ultrafast, ultrabright X-ray pulses of the Linac Coherent Light Source (LCLS) have enabled unprecedented views of a catalyst in action, an important step in the effort to develop cleaner and more efficient ...
A new phase in reading photons: Photodetector beats the quantum limit by a factor of four
A new photodetector can cleanly discriminate among four states, not just the standard two states of binary logic.
Researchers show short laser pulses selectively heat gold nanoparticles
(Phys.org)—Plasmonic gold nanoparticles make pinpoint heating on demand possible. Now Rice University researchers have found a way to selectively heat diverse nanoparticles that could advance their use ...
X-ray laser takes aim at cosmic mystery
Scientists have used powerful X-rays from the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory, to study and measure, in atomic detail, a key process at work in extreme plasmas ...
Physicists skirt thermal vibration, transfer optical signal via mechanical oscillator
Using tiny radiation pressure forces—generated each time light is reflected off a surface—University of Oregon physicists converted an optical field, or signal, from one color to another. Aided by a "dark ...