Researchers have demonstrated that a laser can transmit an audible message to a person without any type of receiver equipment. The ability to send highly targeted audio signals over the air could be used to communicate across ...
Optics & Photonics
Jan 23, 2019
10
1378
If extraterrestrial intelligence exists somewhere in our galaxy, a new MIT study proposes that laser technology on Earth could, in principle, be fashioned into something of a planetary porch light—a beacon strong enough ...
Astronomy
Nov 5, 2018
22
2049
Big discoveries in science are often made when innovative instruments probe nature in new ways. Laser SETI will search the sky for a variety of pulsed light signals that might have been overlooked before. We may find ET, ...
Astronomy
Aug 1, 2017
0
15
A team of researchers has found a way to detect trace gases down to concentrations at the parts-per-quadrillion level using a new variation on the photoacoustic effect, a technique that measures the sound generated when light ...
Analytical Chemistry
Jun 27, 2017
0
723
Researchers funded by the Swiss National Science Foundation have made a chip-based device that can generate a laser signal with frequencies spaced in a comb-like fashion. Their work could be used in telecommunications applications ...
Optics & Photonics
Jan 7, 2016
0
35
A biomedical breakthrough published today in the journal Nature reveals never-before-seen details of the human body's cellular switchboard that regulates sensory and hormonal responses. The work is based on an X-ray laser ...
General Physics
Jul 22, 2015
0
130
Researchers from Lehigh University, Japan and Canada have advanced a step closer to the dream of all-optical data transmission by building and demonstrating what they call the "world's first fully functioning single crystal ...
Optics & Photonics
Jun 8, 2015
0
161
Ever wonder why stars seem to twinkle? This effect is caused by variations in the density of our atmosphere that cause blurring in light coming from space. It's pretty for stargazing, but a challenge for space-to-ground communications.
Space Exploration
May 15, 2015
0
16
A team of JRC researchers outperformed 27 teams from academia and industry across the globe and achieved best overall result at a competition on indoor localisation in Seattle, USA. Providing accurate position information ...
Engineering
Apr 23, 2015
0
21
Scientists from Forschungszentrum Jülich and the Paul Scherrer Institute in Switzerland in cooperation with international partners have presented the first semiconductor consisting solely of elements of main group IV. As ...
Optics & Photonics
Jan 20, 2015
0
48
