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
For the first time, researchers have created a metasurface lens that uses a piezoelectric thin film to change focal length when a small voltage is applied. Because it is extremely compact and lightweight, the new lens could ...
Optics & Photonics
Feb 17, 2022
0
84
New frontiers have opened in the world of preventing data breaches by using light of two different wavelengths—visible and infrared light. This is achieved by using a new material called a metasurface that makes extreme ...
Optics & Photonics
Nov 10, 2021
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16
Metasurfaces are nanoscale structures that interact with light. Today, most metasurfaces use monolith-like nanopillars to focus, shape and control light. The taller the nanopillar, the more time it takes for light to pass ...
Nanophysics
Oct 13, 2021
1
732
Researchers have designed electromechanically reconfigurable ultrathin optical elements that can be controlled and programmed on a pixel-by-pixel level. These versatile metasurfaces could offer a new chip-based way to achieve ...
Optics & Photonics
Sep 9, 2021
0
98
For years, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have engineered metasurfaces to manipulate light based on its polarization state. That research has contributed to advances ...
General Physics
Aug 14, 2021
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1711
In a new publication from Opto-Electronic Advances, Researchers led by Professor Jinghua Teng from Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), Singapore consider ...
Optics & Photonics
Aug 13, 2021
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291
MIT engineers and colleagues report important new advances on a tunable metasurface, or flat optical device patterned with nanoscale structures, that they compare to a Swiss army knife while its passive predecessor can be ...
Nanophysics
Aug 11, 2021
0
783
Electromagnetic (EM) waves in the terahertz (THz) regime contribute to important applications in communications, security imaging, and bio- and chemical sensing. Such wide applicability has resulted in significant technological ...
Optics & Photonics
Jul 23, 2021
0
9
In a new publication from Opto-Electronic Advances, researchers led by Professor Liu Yan from Xidian University, China and Professor Gan Xuetao from Northwestern Polytechnical University, China, consider generation and application ...
Optics & Photonics
Jul 23, 2021
0
7
