I felt as though I were communing directly with a plant for the first time.
When optical beams, consisting of photons, travel through fibers, they cause vibrations that generate acoustic waves, consisting of phonons. The phenomenon, called Brillouin scattering, has been harnessed by researchers to optomechanically “couple” acoustic waves with light waves. This coupling allows information carried by photons to be transduced, or converted, to the phonons, which travel nearly a million times more slowly than light waves.
Opto-acoustic coupling has enabled researchers to read and manipulate the transduced information more easily. To date, however, many of the Brillouin scattering techniques researchers have used rely on standard fiber geometries that cause acoustic waves to die out quickly, limiting the efficacy of the coupling.
Now, using an optical fiber with a micron-sized waist, University of Rochester researchers have demonstrated how to couple propagating optical waves and long-lived acoustic waves, with strong optical-acoustic interactions.
Welcome to the first issue of Rushing Robotics with brief overviews of each section.
As “Ant-Man and the Wasp: Quantumania” hits theaters, learn about the future of quantum and NSF efforts to advance the quantum future.
A small, globe-trotting balloon declared “missing in action” by an Illinois-based hobbyist club on Feb. 15 has emerged as a candidate to explain one of the three mystery objects shot down by four heat-seeking missiles launched by U.S. Air Force fighters since Feb. 10.
The club—the Northern Illinois Bottlecap Balloon Brigade (NIBBB)—is not pointing fingers yet.
But the circumstantial evidence is at least intriguing. The club’s silver-coated, party-style, “pico balloon” reported its last position on Feb. 10 at 38,910 ft. off the west coast of Alaska, and a popular forecasting tool—the HYSPLIT model provided by the National Oceanic and Atmospheric Administration (NOAA)—projected the cylindrically shaped object would be floating high over the central part of the Yukon Territory on Feb. 11. That is the same day a Lockheed Martin F-22 shot down an unidentified object of a similar description and altitude in the same general area.
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We often see stories of invincible warriors with superhuman abilities combating monstrous threats, but are the days of super soldiers nearly upon us, and could they be the biggest threat of all?
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Credits:
Super Soldiers.
Science & Futurism with Isaac Arthur.
Episode 381a, February 12, 2023
Written, Produced & Narrated by Isaac Arthur.
Editors:
Briana Brownell.
David McFarlane.
Lukas Konecny.
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator