Researchers take closer look at stimulated Brillouin scattering
A major cost of running the National Ignition Facility (NIF) is managing and mitigating laser-induced damage to optics as the laser beams propagate to the target.
A major cost of running the National Ignition Facility (NIF) is managing and mitigating laser-induced damage to optics as the laser beams propagate to the target.
Plasma Physics
Feb 21, 2022
0
33
A quasiparticle that forms in semiconductors can now be moved around at room temperature, a University of Michigan-led study has shown. The finding could cool down computers, enabling faster speeds and higher efficiencies, ...
Optics & Photonics
Feb 15, 2022
0
400
Inside every cellphone lies a tiny mechanical heart, beating several billion times a second. These micromechanical resonators play an essential role in cellphone communication. Buffeted by the cacophony of radio frequencies ...
Optics & Photonics
Feb 5, 2022
0
105
Microplastics are released into the environment by cosmetics, clothing, and industrial processes or from larger plastic products as they break down naturally.
General Physics
Nov 30, 2021
0
9
The captured electrons typically absorb light in the visible spectrum, so that a transparent material becomes colored under the presence of such centers, for instance in diamond. "Color centers are often coming along with ...
Quantum Physics
Nov 1, 2021
0
530
Researchers have detected the rolling movement of a nano-acoustic wave predicted by the famous physicist and Nobel prize winner Lord Rayleigh in 1885. This phenomenon can find applications in acoustic quantum technologies ...
General Physics
Jul 29, 2021
0
3270
Engineers at Duke University have devised a system for manipulating particles approaching the miniscule 2.5 nanometer diameter of DNA using sound-induced electric fields. Dubbed "acoustoelectronic nanotweezers," the approach ...
General Physics
Jun 23, 2021
0
386
Acoustic waves in gases, liquids, and solids usually travel at an almost constant speed of sound. So-called rotons are an exception: their speed of sound changes significantly with the wavelength, and it is also possible ...
General Physics
Jun 10, 2021
1
568
A remote-sensing technique that can detect real-time changes in subsurface environments has undergone successful testing in the desert just outside the KAUST campus in Thuwal, Saudi Arabia.
Earth Sciences
Jun 7, 2021
0
12
Scientists at Sandia National Laboratories have built the world's smallest and best acoustic amplifier. And they did it using a concept that was all but abandoned for almost 50 years.
General Physics
Jun 2, 2021
0
417