New shapes of laser beam 'sneak' through opaque media
Researchers have found a way to pre-treat a laser beam so that it enters opaque surfaces without dispersing—like a headlight that's able to cut through heavy fog at full strength.
Researchers have found a way to pre-treat a laser beam so that it enters opaque surfaces without dispersing—like a headlight that's able to cut through heavy fog at full strength.
Optics & Photonics
Mar 4, 2019
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486
Silicate glass has many applications, including use as a nuclear waste form to immobilize radioactive elements from spent fuel. However, it has one disadvantage—it corrodes when it comes into contact with aqueous solutions. ...
Analytical Chemistry
Feb 28, 2019
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14
Less than a week after its inauguration on 17 January 2019, the prototype Schwarzschild-Couder Telescope (pSCT), a prototype telescope proposed for the Cherenkov Telescope Array (CTA), successfully detected its first Cherenkov ...
Astronomy
Feb 12, 2019
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46
A KAIST research team developed a silicon optical phased array (OPA) chip, which can be a core component for three-dimensional image sensors. This research was co-led by Ph.D. candidate Seong-Hwan Kim and Dr. Jong-Bum You ...
Engineering
Feb 8, 2019
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5
Fractal patterns are common in nature, including in the geometric patterns of a tortoise shell, the structure of a snail shell, the leaves of a succulent plant that repeat to create an intricate pattern, and the frost pattern ...
Optics & Photonics
Jan 31, 2019
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166
Scientists have moved quantum optic networks a step closer to reality. The ability to precisely control the interactions of light and matter at the nanoscale could help such a network transmit larger amounts of data more ...
Nanophysics
Jan 8, 2019
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92
When beams of ultra-short laser pulses running in the same direction intersect with each other at a noticeable angle, various interactions occur between the pulses. These physical phenomena are complicated, and their mathematical ...
Optics & Photonics
Dec 27, 2018
1
325
For the first time, researchers have used tiny gears made of germanium to generate a vortex of twisted light that turns around its axis of travel much like a corkscrew. Because germanium is compatible with the silicon used ...
Optics & Photonics
Dec 21, 2018
0
103
By using light waves instead of electric current to transmit data, photonic chips—circuits for light—have advanced fundamental research in many areas from timekeeping to telecommunications. But for many applications, ...
Optics & Photonics
Nov 28, 2018
0
81
Since the discovery of quantum mechanics, in the early 20th century, physicists have relied on optics to test its fundamentals.
Quantum Physics
Nov 28, 2018
0
82