Optics
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18 hours ago | News
NASA’s
next flagship mission, the James Webb Space Telescope, will carry the
largest primary mirror ever deployed in space. Researchers has borrowed a
page from its segmented mirror design to create a similar example just a
half-inch in diameter. Strangely, the tiny mirror may one day become
the standard for future space telescopes.
May 24 | News
In
quantum physics physical processes in condensed matter and other
many-body systems can often be described with quasiparticles. For the
first time, a team of physicists in Austiri has succeeded in
experimentally realizing a new quasiparticle— a repulsive polaron—in an
ultracold quantum gas.
May 23 | News
A research group from Stony Brook University reports the development and demonstration of a novel probe for atomic quantum matter. Their work describes a proof-of-principle experiment on the diffraction of atomic de Broglie waves from a strongly correlated gas of atoms held in an optical lattice.
May 21 | News
In
experiments with gamma rays in France, researchers have recently proven
that these extremely high-energy electromagnetic waves can be focused
by lenses like conventional light. This finding that gamma rays can be
refracted overturns a fundamental assumption of theoretical physics.
May 16 | News
By
combining the light of three powerful infrared telescopes, an
international research team has observed the active accretion phase of a
supermassive black hole in the center of a galaxy tens of millions of
light years away, a method that has yielded an unprecedented amount of
data for such observations.
May 15 | News
Camera
maker Canon Inc. is moving toward fully automating digital camera
production in an effort to cut costs—a key change being played out
across Japan, a world leader in robotics. According to the company
spokesman, counting on machines can help preserve the country's
technological power.
May 7 | News
NASA's
Hubble Space Telescope recently imaged the Moon’s crater Tycho, though
not for the purpose of adding to our knowledge of the lunar surface.
Instead, the telescope was being prepped for study the last transit of
the sun by Venus to occur this century. Because the Hubble can’t look at
the sun directly, the Moon will serve as a giant mirror.
May 4 | News
Intelligent
swarms of aerial drones equipped with high-resolution 3D imaging
systems could be a useful tool for police, crisis managers, and urban
planners. Special 3D sensors developed engineers in Germany accurately
measures distances in three dimensions, prompting speculation that such
drones could be developed.
May 4 | News
Using
off-the-shelf parts, a researcher in Canada has created a Star
Trek-like human-scale 3D videoconferencing pod that allows people in
different locations to video conference as if they are standing in front
of each other. Called TeleHuman, the device projects a full body image
that is viewable from 360 degrees.
Apr 30 | News
The
title of world’s most accurate clock has been transferred from devices
based on the steady oscillations of the cesium atom to clocks based on
optical transitions. Before this newfound precision can redefine the
second, or lead to new applications like ultra-precise navigation, the
system used to communicate time around the globe will need an upgrade.
Researchers have recently demonstrated how this could be accomplished.
