Semiconductor lasers are the most widely used lasers due to their compact size, high efficiency, low cost and wide spectra. But they suffer low output power and low beam quality—two specifications difficult to improve simultaneously. ...
Optics & Photonics
May 5, 2022
0
306
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
Space travel can be agonizingly slow: For example, the New Horizons probe took almost 10 years to reach Pluto. Traveling to Proxima Centauri b, the closest habitable planet to Earth, would require thousands of years with ...
Space Exploration
Feb 23, 2022
3
68
Could a laser send a spacecraft to Mars? That's a proposed mission from a group at McGill University, designed to meet a solicitation from NASA. The laser, a 10-meter wide array on Earth, would heat hydrogen plasma in a chamber ...
The photocathode drive laser is one of the key parts of the beam test system of the Platform of Advanced Photon Source (PAPS). Recently, the researchers from Institute of High Energy Physics (IHEP) of the Chinese Academy ...
Optics & Photonics
Sep 10, 2021
0
24
In a new publication from Opto-Electronic Advances, researchers led by Professor Yan-Gang Bi from Jilin University, Changchun, China discuss tunable surface plasmon-polariton resonance in organic light-emitting devices based ...
Optics & Photonics
Sep 7, 2021
0
9
Lawrence Livermore National Laboratory (LLNL) scientists are working on a new diagnostic capability that will provide, for the first time, the ability to make X-ray radiographic movies.
General Physics
Sep 1, 2021
1
4
Nuclear scientists using lasers the size of three football fields said Tuesday they had generated a huge amount of energy from fusion, possibly offering hope for the development of a new clean energy source.
Plasma Physics
Aug 18, 2021
17
3264
National University of Singapore researchers have developed a new generation of near infra-red (NIR)-emitting nanoprobes for super-resolution imaging in deep tissues. These nanoprobes are based on lanthanide-doped nanomaterials ...
Bio & Medicine
Jun 21, 2021
0
14
If you have witnessed the rainbow pattern that dances on the surface of a CD or DVD, then you have seen diffraction at work. The disk acts as a diffraction grating, an optical element that disperses light into various colors ...
Optics & Photonics
Jun 2, 2021
0
16
