This is the directional emission of light.Credit: TU Wien
Recently, surprising physical effects were observed using special microscopic waveguides for light. Such "photonic structures" currently are revolutionizing the fields of optics and photonics, and have opened up the new research...
Each cylinder of this new non-metal metamaterial is made of boron-doped silicon and precisely tailored to absorb electromagnetic waves. Credit: Willie Padilla, Duke University
Electrical engineers at Duke University have created the world's first electromagnetic metamaterial made without any metal....
Three representations of the 'needle pulse' beam, showing how the circular wave fronts collapse into a needle-like thin power distribution with no side lobes. Credit: Kevin Parker/Miguel Alonso
A new beam pattern devised by University of Rochester researchers could bring...
Following a blueprint created by UC Berkeley physicist Norman Yao, physicists at the University of Maryland made the first time crystal using a one-dimensional chain of ytterbium ions. Each ion behaves like an electron spin and exhibits long-range interactions...
Illustration of a photon gun. A quantum dot (the yellow symbol) emits one photon (red wave packet) at a time. The quantum dot is embedded in a photonic crystal structure, which is obtained by etching holes (black circles) in...
Hybrid-integrated master-oscillator power-amplifier (MOPA) laser module for rubidium precision spectroscopy in space developed by the Ferdinand-Braun-Institut – three of these MOPA modules along with two redundant modules are integrated into the laser system. Credit: FBH/schurian.com
For the first time ever,...
Images of the electron trap architecture. Top: Schematic representation of the experiment. Current of surface electrons, induced by ac voltage applied to the electrode underneath Reservoir 1, flows between Reservoirs 1 and 4, as shown by the red arrow....
Current sheets and plasmoids are formed during the simulation of a process called coaxial helicity injection, which could produce effective startup current-drive in spherical tokamaks. Credit: Fatima Ebrahimi
Physicist Fatima Ebrahimi at the U.S. Department of Energy's (DOE) Princeton Plasma...
Topological transitions of a deformed kagome lattice by uniform soft twisting. Credit: Nature Communications (2017). DOI: 10.1038/ncomms14201
When a material is made, you typically cannot change whether that material is hard or soft. But a group of University of Michigan...
Narrow-bandwidth pulses, produced by a new scheme using a microring resonator, are characterized with a beating technique. Credit: Ultrafast Optical Processing Group, INRS-EMT
The Ultrafast Optical Processing Group at INRS (Institut national de la recherche scientifique) has redefined the limitations...
When a crystal structure of bismuth (right) is decompressed from 32,000 atmospheres (3.2 GPa) to 12,000 atmospheres (1.2 GPa) it melts into a liquid at about 23,000 atmospheres (2.3 GPa) (middle). It then recrystallizes at 12,000 atmospheres (left). The...
