Researchers have demonstrated that a laser can transmit an audible message to a person without any type of receiver equipment. The ability to send highly targeted audio signals over the air could be used to communicate across ...
Optics & Photonics
Jan 23, 2019
10
1378
Since the first laser was invented in 1960, they've always given off heat—either as a useful tool, a byproduct or a fictional way to vanquish intergalactic enemies.
Optics & Photonics
Nov 16, 2015
1
4944
Researchers at the Technical University of Munich (TUM) have succeeded in measuring the Earth's rotation more exactly than ever before. The ring laser at the Geodetic Observatory Wettzell can now be used to capture data at ...
Astronomy
Nov 11, 2023
5
1092
A new method allows the quantum state of atomic "qubits"—the basic unit of information in quantum computers—to be measured with twenty times less error than was previously possible, without losing any atoms. Accurately ...
Quantum Physics
Mar 25, 2019
0
662
Electrical engineers at Duke University have developed a material that allows them to manipulate light in much the same way that electronics manipulate flowing electrons.
General Physics
Aug 1, 2011
1
0
The ground-based laser system homed in on the red drone flying by, shooting a high-energy beam invisible to the naked eye. Suddenly, a fiery orange glow flared on the drone, smoke poured from its engine and a parachute opened ...
Optics & Photonics
Apr 14, 2022
1
33
(Phys.org)—A combined team of researchers from Israel's Hebrew University and Technion-Israel Institute of Technology and Germany's Universität Kassel has succeeded in demonstrating coherent control of bond-forming between ...
Imagine a person on the ground guiding an airborne drone that harnesses its energy from a laser beam, eliminating the need for carrying a bulky onboard battery.
Polymers
Aug 18, 2023
1
896
A team of researchers at the University of Toronto has found a way to measure how long quantum tunneling takes to happen. In their paper published in the journal Nature, the group describes experiments they conducted and ...
Physicists have proposed an entirely new way to test the quantum superposition principle—the idea that a quantum object can exist in multiple states at the same time. The new test is based on examining the quantum rotation ...
