Solid materials are generally known to be rigid and unmoving, but scientists are turning this idea on its head by exploring ways to incorporate moving parts into solids. This can enable the development of exotic new materials ...
Analytical Chemistry
Sep 29, 2023
0
144
Water whirlpools, smoke rings, violent tornados and spiral galaxies are all examples of twists in fluids, although very different each other. Analogous twists, but in the realm of light, have been created by the research ...
Optics & Photonics
Apr 11, 2022
0
139
Researchers at Columbia Engineering have developed a new class of integrated photonic devices—"leaky-wave metasurfaces"—that can convert light initially confined in an optical waveguide to an arbitrary optical pattern ...
Nanophysics
May 8, 2023
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67
In daily life light is often generated by spontaneous emission, for instance, in lighting, in LCD displays, and in DVD players. In this process, an excited quantum emitter, such as an atom, a molecule, or a quantum dot emits ...
General Physics
Feb 4, 2014
0
0
Though it sounds like something straight out of science fiction, controlling the speed of light has in fact been a long-standing challenge for physicists. In a study recently published in Communications Physics, researchers ...
General Physics
Dec 14, 2020
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1404
Quicker is not always better, especially when it comes to a 3-D sensor in advanced technology. With applications in autonomous vehicles, robots and drones, security systems and more, researchers are striving for a 3-D sensor ...
Optics & Photonics
Jan 14, 2020
0
13
Europe is set to launch two satellites on Friday with very important missions: one will track environmental damage to Earth, while the other will test a mainstay of physics theory.
Space Exploration
Apr 21, 2016
0
43
When a robot is moving one of its limbs through free space, its behavior is well-described by a few simple equations. But as soon as it strikes something solid—when a walking robot's foot hits the ground, or a grasping ...
Robotics
Mar 21, 2013
1
0
Today's high-speed wired communication networks use lasers to carry information through optical fibers, but wireless networks are currently based on radio frequencies or microwaves. In an advance that could one day make light-based ...
Optics & Photonics
Jul 19, 2016
0
61
Waves do not always spread uniformly into all directions, but can form a remarkable "branched flow." At TU Wien (Vienna) a method has now been developed to control this phenomenon.
Quantum Physics
Jun 24, 2019
1
1
