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
A Lancaster University Ph.D. student has measured the optical depth of Saturn's rings using a new method based on how much sunlight reached the Cassini spacecraft while it was in the shadow of the rings.
Planetary Sciences
Nov 14, 2023
0
53
Scientists can now look deeper into new materials to study their structure and behavior, thanks to work by an international group of researchers led by UC Davis and the Lawrence Berkeley National Laboratory and published ...
Nanophysics
Aug 16, 2011
0
0
University of California, Davis, researchers for the first time have looked inside gallium manganese arsenide, a type of material known as a "dilute magnetic semiconductor" that could open up an entirely new class of faster, ...
General Physics
Oct 23, 2012
2
0
A team of researchers at Cornell has developed an ultrathin film of cesium antimonide that can be used as a highly efficient photocathode. In their paper published in the journal Physical Review Letters, the group describes ...
Since the 19th century, microscopy and spectroscopy methods have illuminated many aspects of chemistry and physics, from defining atomic spectra to bringing clarity to Einstein's photoelectric effect.
Nanophysics
Feb 4, 2013
1
0
When it comes to producing high-quality electron beams like those found in state-of-the-art scientific equipment like free-electron lasers, ultrafast electron diffraction and imaging and wakefield accelerators, scientists ...
Nanophysics
Mar 8, 2021
1
57
Time‑correlated single‑photon counting (TCSPC) technique is a powerful way to measure the weak light signals. The basic principle behind TCSPC is the photoelectric effect in which an electrical charge is released by absorbing ...
Optics & Photonics
Apr 28, 2022
0
3
How can researchers use the mechanism of photoionization to gain insight into complex molecular potential? This question has now been answered by a team led by Prof. Dr. Giuseppe Sansone from the Institute of Physics at the ...
Optics & Photonics
Mar 16, 2022
2
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