Terahertz light, radiation in the far-infrared part of the emission spectrum, is currently not fully exploited in technology, although it shows great potential for many applications in sensing, homeland security screening, ...
Optics & Photonics
Nov 4, 2022
0
21
A highly efficient LED that is deadly to microbes and viruses but safe for people has been engineered by three RIKEN physicists. It could one day help countries emerge from the shadows of pandemics by killing pathogens in ...
Optics & Photonics
Oct 4, 2022
1
269
Erbium-doped fiber amplifiers (EDFAs) are devices that can provide gain to the optical signal power in optical fibers. They are often used in long-distance communication fiber optic cables and fiber-based lasers. Invented ...
Optics & Photonics
Jun 16, 2022
0
183
Triboelectric nanogenerators (TENGs) can collect mechanical energy through contact initiation and electrostatic induction. TENGs have a wide range of applications in self-powered sensors and mechanical energy harvesting.
Nanophysics
May 30, 2022
0
53
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
Engineers only get one shot at making a spacecraft work as intended—or at least they only get one shot in space. In the preparation leading up to that final, climactic moment, there are typically thousands of hours of tests ...
Space Exploration
Dec 3, 2021
1
28
Heat engines are devices that use waste heat to perform mechanical work and generate power. The invention of heat engines ushered in an era of the industrial revolution 250 years ago. The Otto engine, which uses distinct ...
Quantum Physics
Nov 9, 2021
0
77
Israeli and German researchers have developed a way to force an array of vertical cavity lasers to act together as a single laser—a highly effective laser network the size of a grain of sand. The findings are presented ...
Optics & Photonics
Sep 24, 2021
0
612
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
Recently, researchers from the Shanghai Institute of Optics and Fine Mechanics (SIOM) of the Chinese Academy of Sciences (CAS) have provided the new idea of co-pumping single-frequency Raman amplifiers. Relevant result was ...
Optics & Photonics
Jul 27, 2021
0
35
