Optoelectronic integration offers a promising strategy to simultaneously obtain the merits of electrons and photons when they serve as information carriers, including high-density communication and high-speed information ...
Materials Science
Jun 14, 2019
0
3
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
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3
Acquiring images of ultrafast processes is a technology vitally needed for many cutting-edge physical, chemical, and biological studies. The latest research conducted by City University of Hong Kong (CityU) and Xi'an Jiaotong ...
Optics & Photonics
May 21, 2019
1
5
Solar cells and photocathodes made of copper oxide could theoretically attain high efficiencies for solar energy conversion. In practice, however, large losses occur. Now, a team at the HZB has been able to use a sophisticated ...
Materials Science
May 10, 2019
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55
Scientists of the Far Eastern Federal University (FEFU) together with Russian colleagues from ITMO University, researchers at the University of Texas at Dallas, and Australian National University have developed an efficient, ...
Nanophysics
Mar 13, 2019
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36
Researchers of the Laboratory for Attosecond Physics at LMU and the Max Planck Institute for Quantum Optics have developed a microscope that tracks the motion of electrons.
Optics & Photonics
Mar 08, 2019
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24
Laser physicists have taken snapshots of how C60 carbon molecules react to extremely short pulses of intense infrared light.
Nanophysics
Feb 12, 2019
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14
In a recent publication in Science, researchers at the University of Paderborn and the Fritz Haber Institute Berlin demonstrated their ability to observe electrons' movements during a chemical reaction. Researchers have long ...
Condensed Matter
Dec 27, 2018
3
3414
When beams of ultra-short laser pulses running in the same direction intersect with each other at a noticeable angle, various interactions occur between the pulses. These physical phenomena are complicated, and their mathematical ...
Optics & Photonics
Dec 27, 2018
1
325
In January 2009, the life of engineer Michel Meunier, a professor at Polytechnique Montréal, changed dramatically. Like others, he had observed that the extremely short pulse of a femtosecond laser could make nanometre-sized ...
Bio & Medicine
Nov 19, 2018
0
20
A femtosecond is the SI unit of time equal to 10-15 of a second. That is one quadrillionth, or one millionth of one billionth of a second. For context, a femtosecond is to a second what a second is to about 31.7 million years.
The word femtosecond is formed by the SI prefix femto and the SI unit second. Its symbol is fs.
A femtosecond is equal to 1000 attoseconds, or 1/1000 picosecond. Because the next higher SI unit is 1000 times larger, times of 10-14 and 10-13 seconds are typically expressed as tens or hundreds of femtoseconds.
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