National University of Singapore researchers have predicted that Landau levels belonging to different valleys in a two-dimensional (2D) valleytronic material, monolayer tungsten diselenide (WSe2), can be aligned at a critical ...
Condensed Matter
Jun 14, 2022
0
500
Scientists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have uncovered critical new details about fusion facilities that use lasers to compress the fuel that produces fusion energy. ...
Plasma Physics
Jun 8, 2022
2
515
Shine a flashlight into a murky pond water and the beam won't penetrate very far. Absorption and scattering rapidly diminishes the intensity of the light beam, which loses a fixed percentage of energy per unit distance traveled. ...
Nanophysics
Apr 21, 2022
0
169
A donut is not a bun. From a mathematical point of view, they are two fundamentally different objects: The donut has a hole, the bun does not. A circle inside the donut around its hole in the center cannot be shrunk to a ...
Optics & Photonics
Feb 28, 2022
0
305
Imagine dropping a tennis ball onto a bedroom mattress. The tennis ball will bend the mattress a bit, but not permanently—pick the ball back up, and the mattress returns to its original position and strength. Scientists ...
Materials Science
Feb 25, 2022
0
107
In a new publication from Opto-Electronic Advances, authors from the Laser Engineering Group in the School of Engineering at the University of Liverpool, Liverpool, United Kingdom, discuss two-photon absorption and stimulated ...
Optics & Photonics
Feb 17, 2022
0
6
Proton therapy is a precise and effective treatment for tumors in sensitive areas of the body, such as the brain or the eyes, with the advantage that it spares healthy tissue. In this procedure, protons (positively charged ...
Optics & Photonics
Feb 1, 2022
0
65
Drilling with the beam of an electron microscope, scientists at the Department of Energy's Oak Ridge National Laboratory precisely machined tiny electrically conductive cubes that can interact with light and organized them ...
Optics & Photonics
Jan 28, 2022
1
98
A Lancaster physicist has proposed a radical solution to the question of how a charged particle, such as an electron, responded to its own electromagnetic field.
General Physics
Jan 25, 2022
6
895
Laser beams can do more than just heat things up; they can cool them down too. That is nothing new for physicists who have devoted themselves to precision spectroscopy and the development of optical atomic clocks. But what ...
Quantum Physics
Dec 13, 2021
0
439
