Optical beams carrying orbital angular momentum (OAM) have attracted growing attention during the last decades, exhibiting disruptive applications in a wide range of fields: particle trapping and tweezing, high-resolution ...
Optics & Photonics
Dec 11, 2019
0
38
Atoms, molecules or even living cells can be manipulated with light beams. At TU Wien a method was developed to revolutionize such "optical tweezers".
Optics & Photonics
Nov 19, 2019
0
75
Light can be directed in different directions, usually also back the same way. Physicists from the University of Bonn and the University of Cologne have, however, succeeded in creating a new one-way street for light. They ...
General Physics
Nov 14, 2019
1
13125
Researchers have developed a way to capture moving objects with the unconventional imaging method known as ghost imaging. The new method could make the imaging technique practical for new applications such as biomedical imaging, ...
Optics & Photonics
Nov 13, 2019
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33
An advanced imaging technique reveals new structural details of S-DNA, ladder-like DNA that forms when the molecule experiences extreme tension. This work conducted at Sandia National Laboratories and Vrije University in ...
Analytical Chemistry
Oct 30, 2019
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318
The biological technique of 'optogenetics' uses light to control cells within living tissues that have been genetically modified to be light-sensitive. However, there is limited control of processes like this, as the light ...
Nanomaterials
Oct 29, 2019
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8
This ghostly image shows what can happen when an interstellar cloud passes too close to a star. Barnard's Merope Nebula, also known as IC 349, is a cloud of interstellar gas and dust traveling through the Pleiades star cluster ...
Astronomy
Oct 28, 2019
1
41
Bendable light beams have significant applications in optical manipulation, optical imaging, routing, micromachining and nonlinear optics. Researchers have long explored curved light beams in place of traditional Gaussian ...
Researchers have developed a new laser-based system that offers an efficient and low-cost way to detect fires in challenging environments such as industrial facilities or large construction sites. With further development, ...
Optics & Photonics
Sep 25, 2019
0
14
One problem in dealing with weapons of mass destruction is that they are well hidden. The key to finding them may be to change the methods we use to look. One such method is taking shape in a lab in the basement of Small ...
General Physics
Sep 5, 2019
0
4
