(Phys.org)—The world's most stable laser – with frequency variation of no more than 2 parts in 10,000 trillion – has been developed and tested by an international collaboration of scientists at NIST/JILA in Boulder, ...
Optics & Photonics
Sep 11, 2012
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0
For the first time, astronomers have observed in visible light a cataclysmic cosmic event that generated gravitational waves detected on Earth.
Astronomy
Oct 16, 2017
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56
When light goes through a material, it often behaves in unpredictable ways. This phenomenon is the subject of an entire field of study called "nonlinear optics," which is now integral to technological and scientific advances ...
Optics & Photonics
Jan 11, 2024
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88
China's 500-meter Aperture Spherical radio Telescope (FAST) discovered a radio millisecond pulsar (MSP) coincident with the unassociated gamma-ray source 3FGL J0318.1+0252 in the Fermi Large Area Telescope (LAT) point-source ...
Astronomy
Apr 30, 2018
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24
We've already found gravity waves through a detector that can sense movement which is around 100 trillion times less than the width of a human hair, so what's the next step? How about increasing that sensitivity by using ...
General Physics
Apr 14, 2016
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104
Last year, the first detection of gravitational waves linked to a gamma-ray burst triggered a vast follow-up campaign with ground and space telescopes to study the aftermath of the neutron star merger that gave rise to the ...
Astronomy
Jun 1, 2018
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40
Radio frequency interference (RFI) caused by human communication techniques (e.g., satellites, base stations, and navigation radars) can significantly distort shapes of multichannel time-frequency radio signals. Subsequent ...
Astronomy
Aug 4, 2023
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22
LISA Pathfinder will pave the way for future missions by testing in flight the very concept of gravitational wave detection: it will put two test masses in a near-perfect gravitational free-fall and control and measure their ...
Space Exploration
Nov 16, 2015
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