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 ...
Optics & Photonics
Jul 11, 2019
0
304
The ability to control infrared and terahertz waves using magnetic or electric fields is one of the great challenges in physics that could revolutionise opto-electronics, telecommunications and medical diagnostics. A theory ...
Nanophysics
Jul 9, 2019
0
226
Researchers at the UCLA Samueli School of Engineering have developed an ultra-sensitive light-detecting system that could enable astronomers to view galaxies, stars and planetary systems in superb detail.
Optics & Photonics
Jul 9, 2019
1
574
With a light-spinning device inspired by the Japanese art of paper cutting, University of Michigan researchers have detected microscopic twists in the internal structure of plant and animal tissue without harmful X-rays.
Materials Science
Jul 2, 2019
0
1
A team of scientists from DESY and the University of Hamburg has achieved an important milestone in the quest for a new type of compact particle accelerator. Using ultra-powerful pulses of laser light, they were able to produce ...
Optics & Photonics
Jun 14, 2019
0
2192
Scientists from ITMO University for the first time in the world managed to directly measure the nonlinear refractive index of matter in the terahertz range. The results of the experiments were compared with previous theoretical ...
General Physics
May 27, 2019
0
67
The results of a Russian-Japanese experiment explain the mechanism of electron photoemission by metallic nanostructures under ultrafast laser excitation. Metallic nanoparticle ensembles are capable of emitting short bunches ...
Optics & Photonics
May 22, 2019
0
3
Radiation from many parts of the electromagnetic spectrum has been harnessed for extremely beneficial uses, in fields as diverse as medicine, imaging and photography, and astronomy. However, the terahertz (THz) region of ...
General Physics
May 16, 2019
0
13
The ability to manipulate light on a subwavelength-scale could lead to a revolution in photonic devices such as antennas, solar panels, and even cloaking devices. Nanotechnology advances have made this possible through the ...
Optics & Photonics
Apr 17, 2019
0
11
In a recent study, researchers developed a novel graphene-enabled photodetector that operates at room temperature, is highly sensitive, fast, has a wide dynamic range, and covers a broad range of THz frequencies. The researchers ...
Nanomaterials
Apr 16, 2019
0
58
