Each year, an estimated two trillion dollars is lost globally due to counterfeit products ranging from jewelry to medicine. As current security labels and product authentication methods are rapidly becoming obsolete or easy ...
Nanophysics
Mar 14, 2023
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To get the extremely high-resolution images vital to study new materials, microbes, and more, scientists often build microscopes based on optical vortices. Forming these tiny tornadoes of light is done using quartz or liquid ...
Plasma Physics
May 7, 2018
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47
(Phys.org) —A group of researchers at Macquarie University has shown that circular dichroism – a differential absorption of the circular polarization light – can be induced in mirror symmetric samples such as circular ...
Optics & Photonics
Sep 15, 2014
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Researchers from the University of York are pioneering the development of electron microscopes which will allow scientists to examine a greater variety of materials in new revolutionary ways.
General Physics
Feb 16, 2012
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The Fourth Industrial Revolution is driving exponential growth in data transmission, and cost-effective, ultrafast, and compact optical communication technologies are urgently needed to manage the exploding data transmission ...
Nanophysics
Mar 16, 2023
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3
An all fiber-based approach to generating special optical beams, called Bessel beams, could open up new applications in imaging, optical trapping and communications.
Optics & Photonics
Aug 9, 2022
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22
Researchers from Skoltech, the University of Iceland, and the University of Southampton have demonstrated the formation of an odd never-before-seen entity from the realm of quantum physics: a cluster of optical vortices with ...
Optics & Photonics
Aug 10, 2022
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63
(Phys.org)—Will humans ever control lightning? Could we make the invisible visible, and vice versa?
General Physics
Sep 12, 2012
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The future of optical communications just got brighter. In a development reported in Advanced Photonics, researchers from Nanjing University have introduced iso-propagation vortices (IPVs), a novel concept that offers a solution ...
Optics & Photonics
May 20, 2024
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15
The PBG group of Department of physics, Fudan University, recently proposed a method using a reflective photonic crystal slab to generate vortex with high conversion efficiency and without an alignment center.
Optics & Photonics
Jan 4, 2023
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