Bloch oscillations (BOs) were initially predicted for electrons in a solid lattice as a static electric field is applied. Scientists in China created a synthetic frequency lattice in a fiber loop under detuned phase modulation ...
Optics & Photonics
Mar 11, 2021
0
5
Xu Yi, assistant professor of electrical and computer engineering at the University of Virginia, collaborated with Yun-Feng Xiao's group from Peking University and researchers at Caltech to achieve the broadest recorded spectral ...
Optics & Photonics
May 22, 2020
0
352
Using the Very Long Baseline Interferometry (VLBI) technique, astronomers have probed the parsec-scale jet of a neutrino-emitting blazar known as TXS 0506+056. Results of the new study, presented May 1 on arXiv.org, shed ...
Anxiety has set in across the space industry ever since the world's richest man, Jeff Bezos, revealed Project Kuiper: a plan to put 3,236 satellites in orbit to provide high-speed internet across the globe.
Space Exploration
May 8, 2019
3
464
Using Russia's Spektr-R space telescope (also known as RadioAstron), astronomers have conducted high-resolution observations of the blazar S5 0716+71. The results of these observations, presented in a paper published February ...
Researchers at Duke University have discovered that a perfect absorber of electromagnetic waves they described in a 2017 paper can easily be tweaked into a sort of "time-reversed laser" known as a coherent perfect absorber ...
Optics & Photonics
Feb 15, 2019
2
832
The proliferation of wireless devices may make daily life easier, but their signals are crowding an already limited number of available radio frequencies that enable wireless communication. A University of Georgia researcher ...
Optics & Photonics
Feb 13, 2017
0
67
If you thought your phone bill was expensive, UK telecoms regulator Ofcom just announced an inflation-busting price hike that will triple the licence fees paid by UK mobile network operating companies. The likes of EE, O2, ...
Telecom
Oct 2, 2015
1
25
The tungsten lightbulb has served well over the century or so since it was introduced, but its days are numbered now with the arrival of LED lighting, which consume a tenth of the power of incandescent bulbs and have a lifespan ...
Telecom
Sep 29, 2015
0
88
Sending information with the help of light is the future. It requires 'light chips', made of a special glass. Scientists from the UT research institute MESA+ have now managed to equip these light chips - which were already ...
Optics & Photonics
Sep 14, 2015
0
78
