News tagged with photonics systems

New ultra-small laser opens up a world of possibilities

(PhysOrg.com) -- Computing and medicine are among the many fields which could be revolutionised by a new form of ultra-small laser.

Physics / Optics & Photonics

created Apr 04, 2012 | popularity 5 / 5 (7) | comments 0 | with audio podcast

Image or mirror image? Chiral recognition by femtosecond laser

(PhysOrg.com) -- It is not always easy to distinguish between images and mirror images of molecules, but this knowledge is important when one image of a molecule is a drug and the mirror image is toxic. One ...

Chemistry / Analytical Chemistry

created Mar 09, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Quantum cats are hard to see

Are there parallel universes? And how will we know? This is one of many fascinations people hold about quantum physics. Researchers from the universities of Calgary and Waterloo in Canada and the University ...

Physics / Quantum Physics

created Dec 16, 2011 | popularity 4 / 5 (17) | comments 319 | with audio podcast

Researchers change the color and shape of a single photon

(PhysOrg.com) -- A team of researchers from the CNST and ITL has simultaneously changed the color and shape of a single photon, the smallest unit of light.

Physics / Optics & Photonics

created Oct 06, 2011 | popularity 4.5 / 5 (6) | comments 4 | with audio podcast

Living out Einstein's dreams - French researchers make quantum breakthrough

A team of EU-funded researchers has, for the first time, successfully carried out a constant stabilisation experiment of a quantum state - something Albert Einstein himself once dreamt of.

Physics / Quantum Physics

created Sep 12, 2011 | popularity 4.9 / 5 (7) | comments 1 | with audio podcast

Key ingredient: Change in material boosts prospects of ultrafast single-photon detector

By swapping one superconducting material for another, researchers at the National Institute of Standards and Technology (NIST) have found a practical way to boost the efficiency of the world's fastest single-photon ...

Physics / General Physics

created Jun 30, 2011 | popularity not rated yet | comments 0 | with audio podcast

Quantum eavesdropper steals quantum keys

(PhysOrg.com) -- In quantum cryptography, scientists use quantum mechanical effects to encrypt and then communicate confidential information. Although quantum cryptography codes are unbreakable in principle, even the best ...

Physics / Quantum Physics

created Jun 20, 2011 | popularity 4.6 / 5 (11) | comments 10 | with audio podcast report

First telecommunications wavelength quantum dot laser on a silicon substrate

A new generation of high speed, silicon-based information technology has been brought a step closer by researchers in the Department of Electronic and Electrical Engineering at UCL and the London Centre for Nanotechnology. ...

Physics / Optics & Photonics

created Jun 13, 2011 | popularity 5 / 5 (6) | comments 0 | with audio podcast

Physicists describe how to make time-reversed light pulses

(PhysOrg.com) -- By taking advantage of the properties of periodic systems, physicists have described how to efficiently time-reverse ultrashort electromagnetic pulses. Since a time-reversed pulse evolves ...

Physics / General Physics

created May 31, 2011 | popularity 4.4 / 5 (17) | comments 44 | with audio podcast feature

Osmosis in colloidal suspensions

(PhysOrg.com) -- It is very difficult to overestimate the importance of colloidal suspensions. Besides being an integral part of our everyday life (food, cosmetics, drugs), they also serve as an excellent ...

Physics / Soft Matter

created May 18, 2011 | popularity not rated yet | comments 1 | with audio podcast

Australian-led research in nanotechnology a huge breakthrough

(PhysOrg.com) -- Groundbreaking research in quantum light source led by the University of Sydney will result in information speeds many times faster and data that is almost impossible to hack.

Physics / Quantum Physics

created Apr 27, 2011 | popularity 5 / 5 (1) | comments 1

Companion stars could cause unexpected X-rays

Many types of main sequence stars emit in the X-ray portion of the spectra. In massive stars, strong stellar winds ripping through the extended atmosphere of the star create X-ray photons. On lower mass stars, ...

Space & Earth / Astronomy

created Mar 25, 2011 | popularity 5 / 5 (1) | comments 3

Researchers convert quantum signals to telecom wavelengths, increase memory times

Using optically dense, ultra-cold clouds of rubidium atoms, researchers have made advances in three key elements needed for quantum information systems - including a technique for converting photons carrying ...

Physics / Quantum Physics

created Sep 26, 2010 | popularity 4.3 / 5 (10) | comments 2 | with audio podcast

Vulnerability in commercial quantum cryptography

The Norwegian University of Science and Technology (NTNU) and the University of Erlangen-Nurnberg together with the Max Planck Institute for the Science of Light in Erlangen have recently developed and tested ...

Physics / Optics & Photonics

created Aug 29, 2010 | popularity 4.3 / 5 (9) | comments 1 | with audio podcast

Engineers turn noise into vision

(PhysOrg.com) -- A new technique for revealing images of hidden objects may one day allow pilots to peer through fog and doctors to see more precisely into the human body without surgery.

Physics / Optics & Photonics

created Apr 01, 2010 | popularity 4.6 / 5 (19) | comments 2 | with audio podcast