Graphene analogues such as graphene oxide (GO) and its reduced forms (rGO) are fascinating carbon materials due to the complementary properties endowed by the sp3-sp2 interconversion, revealing the substitutability and potential ...
Optics & Photonics
May 27, 2020
0
4
Researchers at the Paul Scherrer Institute PSI have succeeded for the first time in recording a light-driven sodium pump from bacterial cells in action. The findings promise progress in the development of new methods in neurobiology. ...
Optics & Photonics
May 20, 2020
0
116
Optical switches allow for transmitting information using light, which will be useful for the development of ultrafast optical memory cells in the future. Using a femtosecond laser usually used in chemistry for gas absorption, ...
Materials Science
May 19, 2020
0
35
Oxides of different metals often serve as photocatalysts in various systems such as air purification, reactions of water decomposition and even in the production of self-cleaning surfaces for glass and mirrors. The physical-chemical ...
Nanomaterials
May 08, 2020
0
11
Scientists of Far Eastern Federal University (FEFU) in partnership with colleagues from ITMO University, and universities in Germany, Japan, and Australia, have developed a method for precise, fast and high-quality laser ...
Nanomaterials
Apr 22, 2020
0
45
Lasers are becoming one of the dominant tools in current manufacturing industry. Much effort has been devoted to improving processing accuracy, and spatial resolutions as low as micrometers have been achieved in laser cutting, ...
Optics & Photonics
Mar 20, 2020
0
5
If you heat a solid material enough, the thermal energy (latent heat) causes the material's molecules begin to break apart, forming a liquid. One of the most familiar examples of this phase transition from a well-ordered ...
Condensed Matter
Mar 02, 2020
1
41
What do dishwashing liquid and nonstick pans have in common? Besides the fact that one is used to clean the other after cooking, both household items derive their usefulness by affecting the physical properties of fluids ...
Analytical Chemistry
Feb 24, 2020
0
11
Researchers in China led by Lilin Yi at Shanghai Jiao Tong University developed apparatus and software algorithms allowing automatic 'intelligent control' over the femtosecond pulses generated by mode-locked fiber lasers. ...
Optics & Photonics
Feb 19, 2020
0
6
A European team of researchers including physicists from the University of Konstanz has found a way of transporting electrons at times below the femtosecond range by manipulating them with light. This could have major implications ...
General Physics
Dec 23, 2019
1
3565
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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