Researchers develop ways to measure and explain heat transport through a single molecule.
Researchers at the US Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a graphene device that's thinner than a human hair but has a depth of special traits. It easily switches from a superconducting material that conducts electricity without losing any energy, to an insulator that resists the flow of electric current, and back again to a superconductor -- all with a simple flip of a switch.
Researchers from the National University of Singapore have incorporated metamaterials into conventional clothing to dramatically improve signal strength between wearable electronic devices. This innovation could have future applications in high-tech athletic wear and medical apparel.
Hailed as a pioneer by Photonics Media for his previous discoveries of supercontinuum and Cr tunable lasers, City College of New York Distinguished Professor of Science and Engineering Robert R. Alfano and his research team are claiming another breakthrough with a new super class of photons dubbed 'Majorana photons.' They could lead to enhanced information on quantum-level transition and imaging of the brain and its working.
Scientists at DESY have achieved a new world record for an experimental type of miniature particle accelerator: For the first time, a terahertz powered accelerator more than doubled the energy of the injected electrons. At the same time, the setup significantly improved the electron beam quality compared to earlier experiments with the technique, as Dongfang Zhang and his colleagues from the Center for Free-Electron Laser Science (CFEL) at DESY report in the journal Optica.
Engineers of the University of Magdeburg have developed a method for measuring the electrical potentials of molecules and molecular surfaces with previously unattainable precision and speed. They have, for the first time, succeeded in creating high resolution maps of molecular electrical potentials, i.e. the electric fields that surround all matter, within just a few minutes. The research results have just been published in the internationally renowned journal, Nature Materials.
In a global first, NUS scientists have demonstrated that heat energy can be manipulated by utilising the quantum mechanical principle of anti-parity-time symmetry. Using this method, they were able to control the flow of heat in a material.
The collision of two neutron stars (GW170817) flung out an extraordinary fireball of material and energy that is allowing a Princeton-led team of astrophysicists to calculate a more precise value for the Hubble constant, the speed of the universe's expansion. Previous estimates put the value between 66 and 90 km/s/Mpc, which this team refined to between 65.3 and 75.6 km/s/Mpc.
A theory from 2006 predicts that it should be possible to use graphene in a magnetic field not only to absorb terahertz and infrared light on demand but also to control the direction of the circular polarisation. Researchers from UNIGE and Manchester have succeeded in testing this theory and achieved the predicted results. The study shows that the scientists found an efficient way to control infrared and terahertz waves.
The Tibet ASgamma experiment, a China-Japan joint research project, has discovered the highest energy cosmic gamma rays ever observed from an astrophysical source - in this case, the 'Crab Nebula.' The experiment detected gamma rays ranging from > 100 Teraelectron volts (TeV) to an estimated 450 TeV.