Theoretical physicist Farokh Mivehvar has investigated the interaction of two collections of atoms emitting light inside a quantum cavity—an optical device consisting of two high-quality, tiny mirrors facing each other ...
Optics & Photonics
Feb 19, 2024
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12
Antennas for the latest implanted medical devices are being developed by Queen Mary University of London and tested through a unique piece of kit at the UK's National Physical Laboratory (NPL).
Engineering
Sep 8, 2009
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0
There is an ever growing demand for high speed internet communication systems. New research has shown optical switching technology built on nanoantenna reflectarrays and tunable materials could transform high speed optical ...
Optics & Photonics
Dec 2, 2014
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1
Optical nanoantennas capable of converting external electromagnetic fields into confined energy and vice versa play a very important role in optical field manipulation. Among them, the bowtie antenna has received extensive ...
Optics & Photonics
Jun 2, 2022
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32
Atoms and molecules can be made to emit photons. However, without external intervention, this process is inefficient and undirected. If it was possible to influence the process of photon creation in terms of efficiency and ...
Optics & Photonics
Dec 12, 2017
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81
(Phys.org)—Luminescent carbon nanoparticles based on carbon exhibit advantageous optical properties. They are also biocompatible, and therefore better suited for imaging procedures in the biosciences than metal-based semiconductor ...
Nanomaterials
Sep 13, 2012
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0
(Phys.org) -- New research at Rice University that seeks to establish points of reference between plasmonic particles and polymers might lead to smaller computer chips, better antennae and improvements in optical computing.
Nanomaterials
Jul 12, 2012
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0
Antennas catch radio waves, a form of electromagnetic radiation, from the air and convert the energy into electrical signals that feed modern telecommunications. They can also convert electrical signals into radio waves. ...
Optics & Photonics
Mar 13, 2019
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5
Researchers have announced a prototype for a laser at the heart of the first space-based gravitational wave observatory, known as the Laser Interferometer Space Antenna (LISA) mission. The team's new laser nearly meets the ...
Optics & Photonics
Sep 18, 2019
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35
A nanoscale optical antenna developed by researchers at A*STAR allows the manipulation of visible light waves on the scale of microchips. Such nanoantennae may enable the development of high-resolution imaging systems in ...
Nanophysics
Nov 16, 2018
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