(Phys.org) -- Optical atomic clocks measure time with unprecedented accuracy. However, it is the ability to compare clocks with one another that makes them applicable for high-precision tests in fundamental theory, from cosmology ...
General Physics
Apr 27, 2012
3
0
In what may prove to be a major development for scientists in fields ranging from forensics to quantum communications, researchers at the National Institute of Standards and Technology have developed a new, highly sensitive, ...
General Physics
Aug 26, 2009
2
1
From monitoring concentrations of greenhouse gases to detecting COVID in the breath, laser systems known as frequency combs can identify specific molecules as simple as carbon dioxide and as complex as monoclonal antibodies ...
Optics & Photonics
Oct 30, 2023
0
88
(Phys.org) —Gallium nitride has emerged as one of the most widely used materials in the optoelectronics industry and the most important semiconducting material after silicon.
Optics & Photonics
Jan 29, 2014
1
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Promising new calibration tools, called laser frequency combs, could allow astronomers to take a major step in discovering and characterizing earthlike planets around other stars. These devices generate evenly spaced lines ...
Astronomy
Jan 28, 2016
0
861
An effective and less expensive tool for the inspection of food and drugs could soon be a reality. Scientists from the Fritz Haber Institute of the Max Planck Society in Berlin have been working with national and international ...
Optics & Photonics
Jun 17, 2016
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20
The age of 3D printing, when every object so created can be personalized, will increase the need for tags to keep track of everything. Happily, the same 3D printing process used to produce an object can simultaneously generate ...
General Physics
Jul 22, 2013
0
0
The first-time detection of Gravitational Waves (GW) by researchers at the Laser Interferometer Gravitational-wave Observatory (LIGO) in 2015 triggered a revolution in astronomy. This phenomenon consists of ripples in spacetime ...
Astronomy
May 9, 2023
0
66
Electronic systems using light waves instead of voltage signals is advantageous, as electromagnetic light waves oscillate at petaherz frequency. This means that future computers could operate at speeds 1 million times faster ...
Nanophysics
Nov 27, 2018
0
219
Most lasers emit photons of exactly the same wavelength, producing a single color. However, there are also lasers that consist of many frequencies, with equal intervals in between, as in the teeth of a comb; thus, they are ...
Optics & Photonics
Dec 11, 2018
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