Beautiful physics: Tying knots in light
New research published today seeks to push the discovery that light can be tied in knots to the next level.
General Physics
Oct 29, 2012
14
0
Page 11 - News tagged with laser light
Vacuum in optical cavity can change material's magnetic state without laser excitation
Researchers in Germany and the U.S. have produced the first theoretical demonstration that the magnetic state of an atomically thin material, α-RuCl3, can be controlled solely by placing it into an optical cavity. Crucially, ...
Condensed Matter
Nov 3, 2023
1
950
Magnetic-field detector is 1,000 times more efficient than its predecessors
MIT researchers have developed a new, ultrasensitive magnetic-field detector that is 1,000 times more energy-efficient than its predecessors. It could lead to miniaturized, battery-powered devices for medical and materials ...
General Physics
Apr 6, 2015
7
3621
Optical switching at record speeds opens door for ultrafast, light-based electronics and computers
Imagine a home computer operating 1 million times faster than the most expensive hardware on the market. Now imagine that level of computing power as the industry standard. University of Arizona researchers hope to pave the ...
Optics & Photonics
Mar 21, 2023
2
966
A 'Star Wars' laser bullet
Action-packed science-fiction movies often feature colourful laser bolts. But what would a real laser missile look like during flight, if we could only make it out? How would it illuminate its surroundings? The answers lie ...
Optics & Photonics
Oct 22, 2014
0
0
Optical metacage blocks light from entering or escaping
(Phys.org)—Physicists have built a nanowire cage that blocks one or more wavelengths of light from either entering or escaping, yet allows liquids and gases to pass through the small gaps between the nanowires. The "optical ...
Optical levitation of glass nanosphere enables quantum control
Researchers at ETH Zurich have trapped a tiny sphere measuring a hundred nanometres using laser light and slowed down its motion to the lowest quantum mechanical state. This technique could help researchers to study quantum ...
Nanophysics
Jul 15, 2021
1
5916
New phonon laser could lead to breakthroughs in sensing and information processing
The optical laser has grown to a $10 billion global technology market since it was invented in 1960, and has led to Nobel prizes for Art Ashkin for developing optical tweezing and Gerard Mourou and Donna Strickland for work ...
Optics & Photonics
Apr 16, 2019
0
1455
Unlocking the secrets of spin with high-harmonic probes
Deep within every piece of magnetic material, electrons dance to the invisible tune of quantum mechanics. Their spins, akin to tiny atomic tops, dictate the magnetic behavior of the material they inhabit. This microscopic ...
Condensed Matter
Nov 10, 2023
6
372
Quantum laser turns energy loss into gain
Scientists at KAIST have fabricated a laser system that generates highly interactive quantum particles at room temperature. Their findings, published in the journal Nature Photonics, could lead to a single microcavity laser ...
Optics & Photonics
Jul 7, 2021
0
480
