Laguerre-Gaussian (LG) modes are a type of light wave that can carry the external torque of photons as they move through space. They are useful in many fields, from optical communications to super-resolution imaging. Advanced ...
Optics & Photonics
Apr 24, 2023
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15
For the first time, an international team of researchers, including those from the University of Tokyo's Institute for Solid State Physics, has demonstrated a switch, analogous to a transistor, made from a single molecule ...
Condensed Matter
Feb 21, 2023
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129
Widely tunable mid- and long-wave infrared (8–12 μm) lasers are located in the atmospheric window range and the human eye safety range. They are widely applied in the field of Lidar.
Optics & Photonics
Feb 14, 2023
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2
Lasers are intense beams of colored light. Depending on their color and other properties, they can scan your groceries, cut through metal, eradicate tumors, and even trigger nuclear fusion. But not every laser color is available ...
Optics & Photonics
Jan 19, 2023
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372
The X-rays used to examine a broken leg in hospital are easy to produce. In industry, however, X-ray radiation of a completely different kind is needed—namely, X-ray laser pulses that are as short and high-energy as possible. ...
Optics & Photonics
Jan 18, 2023
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36
Imagine walking into an airport or grocery store and your smartphone automatically starts charging. This could be a reality one day, thanks to a new wireless laser charging system that overcomes some of the challenges that ...
Optics & Photonics
Aug 30, 2022
10
335
Finding water on the moon could be easier with a Goddard technology that uses an effect called quantum tunneling to generate a high-powered terahertz laser, filling a gap in existing laser technology.
Space Exploration
Aug 25, 2022
1
54
Researchers from Skoltech, the University of Iceland, and the University of Southampton have demonstrated the formation of an odd never-before-seen entity from the realm of quantum physics: a cluster of optical vortices with ...
Optics & Photonics
Aug 10, 2022
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63
To disinfect a surface, you can illuminate it with a blast of ultraviolet (UV) light, which is bluer than the human eye can see. But to specifically inactivate SARS-CoV-2, the virus that causes COVID-19, which wavelengths ...
Optics & Photonics
Jun 10, 2022
1
51
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
