Researchers have created tiny chip-based optical tweezers that can be used to optically levitate nanoparticles in a vacuum. Optical tweezers—which employ a tightly focused laser beam to hold living cells, nanoparticles ...
Optics & Photonics
Oct 21, 2021
1
69
An international team performed the world's first measurement of how the size of the radium nucleus modifies the structure of molecules containing different radium isotopes. The research used a combination of lasers and ion ...
Quantum Physics
Oct 18, 2021
0
27
In 1965, scientists Robert Burns Woodward and Roald Hoffmann devised a set of rules to predict the outcome of electrocyclic reactions, an important class of reactions in organic chemistry. The Woodward-Hoffmann rules explain ...
Biochemistry
Oct 15, 2021
0
138
At Technische Universität Darmstadt, the world's first operation of a multi-turn superconducting linear accelerator with significant energy recovery succeeded. The experiment at the university's electron linear accelerator ...
General Physics
Sep 28, 2021
2
157
The photocathode drive laser is one of the key parts of the beam test system of the Platform of Advanced Photon Source (PAPS). Recently, the researchers from Institute of High Energy Physics (IHEP) of the Chinese Academy ...
Optics & Photonics
Sep 10, 2021
0
24
Researchers from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) and their collaborators have systematically measured the knockout cross sections of neutron-rich carbon isotopes at the intermediate- ...
General Physics
Sep 6, 2021
0
53
Nuclear scientists using lasers the size of three football fields said Tuesday they had generated a huge amount of energy from fusion, possibly offering hope for the development of a new clean energy source.
Plasma Physics
Aug 18, 2021
17
3264
Seeded free-electron lasers (FELs), which use frequency up-conversion of an external seed laser to improve temporal coherence, are considered ideal for supplying stable, fully coherent, soft X-ray pulses. However, the requirement ...
Optics & Photonics
Mar 11, 2021
0
1
Conversion of most materials into organized crystalline structure starts with the nucleation process. One everyday example is the rapid crystalization of supercooled water after the nucleation of a seed crystal. This phenomenon ...
Analytical Chemistry
Jan 28, 2021
0
69
An especially counter-intuitive feature of quantum mechanics is that a single event can exist in a state of superposition—happening both here and there, or both today and tomorrow.
Quantum Physics
Dec 18, 2020
2
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