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
Using the geometric and material properties of a unique nanostructure, Boston College researchers have uncovered a novel photonic effect where surface plasmons interact with light to form "plasmonic halos" of selectable output ...
Nanophysics
Feb 7, 2013
0
0
Electron microscopes use focussed electron beams to make extremely small objects visible. By combining the instrument with a gas-injection system material samples can be manipulated and surface structures measuring only nanometres ...
Nanophysics
Apr 13, 2011
0
0
Researchers from Osaka University have developed a technique for improving accuracy of laser beam shaping and wavefront obtained by conventional methods with no additional cost by optimizing virtual phase grating. The results ...
Optics & Photonics
Apr 24, 2019
0
59
In 2018, one-half of the Nobel Prize was awarded to Arthur Ashkin, the physicist who developed optical tweezers, the use of a tightly focused laser beam to isolate and move micron-scale objects (the size of red blood cells). ...
Bio & Medicine
Sep 1, 2020
0
230
Taking images through opaque, light-scattering layers is a vital capability and essential diagnostic tool in many disciplines, including nanotechnology and the biosciences. Current techniques are unable to image through opaque ...
General Physics
Dec 7, 2012
2
0
University of Illinois researchers are giving a light answer to the heavy question of cell growth.
Cell & Microbiology
Aug 25, 2011
1
0
For the first time, researchers have used liquid crystals to create a flat magic window—a transparent device that produces a hidden image when light shines on it. The technology represents a new twist on a very old light ...
Optics & Photonics
May 5, 2022
0
502
Rydberg atoms and molecules are characterized by having one or more electrons in highly excited bound states. Such atoms and molecules are said to be in "Rydberg states" and are also called "hollow" atoms and molecules. Rydberg ...
Optics & Photonics
Jan 11, 2023
0
181
Researchers from the University of Rostock have developed a novel type of nonlinear photonic circuitry in which intense light beams can define their own path and, in doing so, render themselves impervious to external perturbations. ...
Optics & Photonics
Nov 6, 2020
0
109
