Researchers have developed a compact laser that emits light with extreme spectral purity that doesn't change in response to environmental conditions. The new potentially portable laser could benefit a host of scientific applications, ...
Optics & Photonics
Jan 31, 2019
0
154
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
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
(Phys.org) —Your smartphone now can see what the naked eye cannot: A single virus and bits of material less than one-thousandth of the width of a human hair.
Nanophysics
Sep 17, 2013
1
0
By bouncing eye-safe laser pulses off a mirror on a hillside, researchers at the National Institute of Standards and Technology (NIST) have transferred ultraprecise time signals through open air with unprecedented precision ...
Optics & Photonics
May 1, 2013
2
0
Society's increasing technology use and data consumption is causing an information bottleneck, congesting airwave frequencies and sending engineers searching for access to higher capacity bandwidths.
Engineering
Feb 19, 2013
0
0
(Phys.org) -- Inexpensive, portable devices that can rapidly screen cells for leukemia or HIV may soon be possible thanks to a chip that can produce three-dimensional focusing of a stream of cells, according to researchers.
Analytical Chemistry
May 30, 2012
0
0
