Quantum cryptography is considered a fully secure encryption method, but researchers from Linköping University and Stockholm University have discovered that this is not always the case. They found that energy-time entanglement ...
Quantum Physics
Dec 18, 2015
0
162
With the help of a semiconductor quantum dot, physicists at the University of Basel have developed a new type of light source that emits single photons. For the first time, the researchers have managed to create a stream ...
Optics & Photonics
Sep 7, 2015
2
228
A team of scientists has successfully measured particles of light being "squeezed", in an experiment that had been written off in physics textbooks as impossible to observe.
Quantum Physics
Aug 31, 2015
1
3065
The Optical Single Crystals Group at NIMS, in collaboration with Tamura Corporation and Koha Co., Ltd., successfully developed single-crystal phosphors that use a blue LD (laser diode) as an excitation light source, are suitable ...
General Physics
Aug 25, 2015
0
17
Researchers have developed an ultrafast light-emitting device that can flip on and off 90 billion times a second and could form the basis of optical computing.
Nanophysics
Jul 27, 2015
3
2332
Researchers from Eindhoven University of Technology can now for the first time remotely control a miniature light source at timescales of 200 trillionth of a second. They published the results on Sept. 2014 in the online ...
Nanophysics
Sep 30, 2014
0
2
(Phys.org) —A team of researchers working in Australia has used "squeezed light" to enhance the sharpness of images produced using photonic force microscopy. In their paper published in Physical Review Letters, the team ...
By emitting photons from a quantum dot at the top of a micropyramid, researchers at Linköping University are creating a polarized light source for such things as energy-saving computer screens and wiretap-proof communications.
Nanophysics
Jan 31, 2014
2
0
Scientists from the FOM Foundation, the University of Twente and at the Institute for Nanoscience and Cryogenics in France have shown that light sources which usually emit light randomly can be coaxed to emit an ultrashort ...
Optics & Photonics
Sep 26, 2013
0
1
(Phys.org) —Many systems envisioned for practical quantum information processing require the use of single, indistinguishable photons as carriers of information and logic operators. So researchers in the field need to be ...
Quantum Physics
Apr 9, 2013
0
0
