News tagged with optical excitation
Billard game in an atom: Physicists trace the double ionization of argon atoms on attosecond time scales
(Phys.org) -- When an intense laser pulse interacts with an atom it generates agitation on the micro scale. A rather likely outcome of this interaction is single ionization, where one electron is ejected from ...
May 08, 2012 |
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Research explores applications for new field of electronics
(PhysOrg.com) -- By looking at the way electrons are excited, researchers can gain a better understanding of the new field of transparent electronics.
Mar 07, 2012 |
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Speed limit on the quantum highway
(PhysOrg.com) -- Physicists at the Max Planck Institute of Quantum Optics have measured the propagation velocity of quantum signals in a many-body system.
Jan 26, 2012 |
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Graphene offers protection from intense laser pulses
Researchers from Singapore and the UK have jointly announced a new benchmark in broadband, non-linear optical-limiting behavior using single-sheet graphene dispersions in a variety of heavy-atom solvents and ...
Nanotechnology / Nanomaterials
Dec 30, 2011 |
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Novel nanocrystals with advanced optical properties developed for use as luminescent biomarkers
Upconversion emission materials are ideal for bioimaging due to its effectiveness as contrast agents for the detection of cancer cells, more so when the background emission of non-cancerous tissues can be minimised. These ...
Nanotechnology / Nanomaterials
Nov 14, 2011 |
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New way to store light could prove useful for optical communication
(PhysOrg.com) -- Due to its high data carrying capacity and low loss, light can serve as an ideal information carrier. However, due to the high speed at which it travels, light is difficult to store. Because ...
Oct 03, 2011 |
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Light unlocks fragrance in laboratory
In Anna Gudmundsdottir's laboratory at the University of Cincinnati, dedicated researchers endeavor to tame the extremely reactive chemicals known as radicals.
Aug 08, 2011 |
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Physicists demonstrate 100-fold speed increase in optical quantum memory
(PhysOrg.com) -- As with today's computers, future quantum computers will require more than just quantum information processing; they will also require methods to store and retrieve the quantum information. ...
Apr 01, 2010 |
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Seeing Previously Invisible Molecules for the First Time
(PhysOrg.com) -- A team of Harvard chemists led by X. Sunney Xie has developed a new microscopic technique for seeing, in color, molecules with undetectable fluorescence. The room-temperature technique allows ...
Chemistry / Analytical Chemistry
Oct 23, 2009 |
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German scientists produce first Bose-Einstein condensate with calcium atoms
Physicists at the Physikalisch-Technische Bundesanstalt (Germany) have succeeded in producing a Bose-Einstein condensate from the alkaline earth element calcium. The use of alkaline earth atoms creates new ...
Sep 22, 2009 |
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World's smallest semiconductor laser heralds new era in optical science
(PhysOrg.com) -- Researchers at the University of California, Berkeley, have reached a new milestone in laser physics by creating the world's smallest semiconductor laser, capable of generating visible light ...
Aug 30, 2009 |
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