Atoms in a crystal form a regular lattice, in which they can move over small distances from their equilibrium positions. Such phonon excitations are represented by quantum states. A superposition of phonon states defines ...
Condensed Matter
May 30, 2023
0
211
By superimposing two laser fields of different strengths and frequency, the electron emission of metals can be measured and controlled precisely to a few attoseconds. Physicists from Friedrich-Alexander-Universität Erlangen-Nürnberg ...
Optics & Photonics
Apr 26, 2023
0
65
Due to the ever-increasing growth of our data consumption, researchers are looking for faster, more efficient, and more energy-conscious data storage techniques. TU/e researcher Youri van Hees uses ultrashort light pulses ...
Optics & Photonics
Dec 9, 2022
2
18
Laser ablation in liquid is a scalable nanoparticle production method in areas like catalysis and biomedicine. Different energy dissipation channels, such as absorption by the liquid and scattering at the ablation plume and ...
Optics & Photonics
Oct 3, 2022
0
6
Sensitive animal noses can sniff out trace particles, such as volatile organic compounds, in the ambient air. Humans, on the other hand, are developing innovative technologies for this purpose, such as optical spectroscopy. ...
Optics & Photonics
Aug 24, 2022
0
405
How do different materials react to the impact of ions? This is a question that plays an important role in many areas of research—for example, in nuclear fusion research, when the walls of the fusion reactor are bombarded ...
Nanophysics
Aug 22, 2022
0
730
A research team from Shanghai Advanced Research Institute of the Chinese Academy of Sciences has proposed an external seeding mechanism, termed echo-enabled harmonic cascade (EEHC), for generating coherent and ultrashort ...
Optics & Photonics
Aug 9, 2022
0
27
A research group led by graduate student Yeelai Chew, Assistant Professor Sylvain de Léséleuc and Professor Kenji Ohmori at the Institute for Molecular Science, National Institutes of Natural Sciences, is using atoms cooled ...
Optics & Photonics
Aug 8, 2022
0
219
The development of high-speed strobe-flash photography in the 1960s by the late MIT professor Harold "Doc" Edgerton allowed us to visualize events too fast for the eye—a bullet piercing an apple, or a droplet hitting a ...
Condensed Matter
Jul 25, 2022
0
777
The future development of functional magnetic devices based on ultrafast optical manipulation of spins requires an understanding of the depth-dependent spin dynamics across the interfaces of complex magnetic heterostructures. ...
General Physics
Jun 22, 2022
0
80
