If you want to get the greatest benefit from a beam of light—whether to detect a distant planet or remedy an aberration in the human eye—you need to be able to measure its beam front information.
Optics & Photonics
Jul 11, 2018
0
124
In a new study, researchers from the U.S. Department of Energy's (DOE) Argonne National Laboratory have determined that electrons in some oxides can experience an "unconventional slowing down" of their response to a light ...
General Physics
Jul 10, 2018
0
47
Two separate research fields have been united in Hamburg for the very first time. Ultrashort laser pulses enable us to observe and manipulate matter on very short time scales, whereas ultracold atoms permit experiments with ...
Quantum Physics
Jul 6, 2018
0
13
Transistors are tiny switches that form the bedrock of modern computing; billions of them route electrical signals around inside a smartphone, for instance.
Quantum Physics
Jul 5, 2018
1
60
A multicolor laser pointer you can use to change the color of the laser with a button click—similar to a multicolor ballpoint pen—is one step closer to reality thanks to a new tiny synthetic material made at Sandia National ...
Optics & Photonics
Jun 28, 2018
0
30
A team headed by the TUM physicists Alexander Holleitner and Reinhard Kienberger has succeeded for the first time in generating ultrashort electric pulses on a chip using metal antennas only a few nanometers in size, then ...
Optics & Photonics
Jun 27, 2018
0
405
Phonons are discrete units of vibrational energy predicted by quantum mechanics that correspond to collective oscillations of atoms inside a molecule or a crystal. When such vibrations are produced by light interacting with ...
Quantum Physics
Jun 5, 2018
1
581
Solar flares, cosmic radiation, and the northern lights are well known phenomena. But exactly how their enormous energy arises is not as well understood. Now, physicists at Chalmers University of Technology, Sweden, have ...
Plasma Physics
Apr 25, 2018
29
29
In recent decades, computers have become faster and hard disks and storage chips have reached enormous capacities. But this trend cannot continue forever. Physical limits are preventing silicon-based computer technology from ...
Optics & Photonics
Apr 17, 2018
0
104
Reactions in solar panels, catalytic converters, and other devices are governed by the quick motion of electrons. To capture the movement of these electrons, scientists use pulses of extremely high energy x-rays. The challenge ...
Optics & Photonics
Apr 10, 2018
0
12
