High-frequency light is useful. The higher the frequency of light, the shorter its wavelength—and the shorter the wavelength, the smaller the objects and details the light can be used to see.
Nanophysics
Apr 27, 2023
0
16
Laser-induced ionization in matter—gas, cluster, liquid, and solid—occurs when a laser pulse with sufficient intensity is focused into a target material, creating electrons and ions through nonlinear processes of laser-matter ...
Optics & Photonics
Apr 27, 2020
0
8
An electromagnetic pulse, or EMP, emitted by a nuclear weapon exploded high above the United States could disable the electronic circuits of many devices vital to military defense and modern living.
Optics & Photonics
Dec 6, 2018
0
5
The environment contains electromagnetic radiation and magnetic fields of natural and artificial origin. Even a short electromagnetic pulse is enough to knock any equipment out of operation. Candidate of Sciences (Physics ...
Materials Science
Sep 7, 2018
0
18
Physicists working with researcher Oriol Romero-Isart devised a new simple scheme to theoretically generate arbitrarily short and focused electromagnetic fields. This new tool could be used for precise sensing and in microscopy.
Optics & Photonics
Jul 27, 2017
1
5
Physicists based at Ludwig-Maximilians-Universitaet (LMU) in Munich and the Max Planck Institute for Quantum Optics have observed a nanoscale light-matter phenomenon which lasts for only attoseconds.
Nanophysics
May 31, 2016
0
24
Predicting or worrying about disasters is a popular pastime. But we tend to take notice when somebody with money at stake becomes concerned.
Other
Aug 11, 2014
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0
Electromagnetic fields can interfere with or damage electronic devices. Electromagnetic radiation is invisible to people. A new measuring instrument can now determine the strength, frequency, and direction of the attack.
Engineering
Dec 2, 2013
0
0
South Korea's spy agency said Monday that North Korea was using Russian technology to develop electromagnetic pulse weapons aimed at paralysing military electronic equipment south of the border.
Other
Nov 4, 2013
2
0
A team of industrial and university researchers has shown that nanoparticles with sizes smaller than 10 nanometers – approximately the width of a cell membrane – can be successfully incorporated into scintillation devices ...
Nanomaterials
Mar 25, 2013
0
0
