High-frequency light is useful. The higher the frequency of light, the shorter its wavelength—and the shorter the wavelength, the smaller the objects and details the light can be used to see.
Nanophysics
Apr 27, 2023
0
16
How water solvates and transports protons is a fundamental question facing chemists and biologists alike and is vital to our understanding of processes such as photosynthesis and cellular respiration.
Materials Science
Aug 10, 2018
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323
Researchers have developed a new type of imaging technology to diagnose cardiovascular disease and other disorders by measuring ultrasound signals from molecules exposed to a fast-pulsing laser.
General Physics
Jun 9, 2011
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0
(Phys.org)—It was an impressive week for researchers combining physics and engineering as one team of engineers took a big step toward using light instead of wires inside computers—they've created a prism-like device ...
Ultrafast time-resolved laser spectroscopy is a technique that uses the interaction of light with matter to study the properties of physical systems. Researchers can generate laser pulses lasting mere attoseconds -- quintillionths ...
Optics & Photonics
Aug 30, 2010
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0
A new study reveals asteroid impacts on ancient Mars could have produced key ingredients for life if the Martian atmosphere was rich in hydrogen. An early hydrogen-rich atmosphere on Mars could also explain how the planet ...
Space Exploration
Mar 26, 2019
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90
In a marathon, everyone starts at roughly the same place at roughly the same time. But the faster runners will gradually increase their lead, and in the end, the distribution of runners on the street will be very broad. Something ...
Optics & Photonics
Jan 27, 2015
2
81
To create X-rays—short wave radiation—scientists at TU Vienna start out with very long wavelengths—infrared laser. Long wavelength laser pulses rip atoms out of metal and accelerate them, which leads to emission of ...
Optics & Photonics
Nov 11, 2014
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0
(Phys.org)—Plasmonic gold nanoparticles make pinpoint heating on demand possible. Now Rice University researchers have found a way to selectively heat diverse nanoparticles that could advance their use in medicine and industry.
Nanomaterials
Jan 3, 2013
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0
Physicists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have successfully generated controlled electron pulses in the attosecond range. They used optical traveling waves formed by laser pulses of varying wavelengths. ...
Optics & Photonics
May 16, 2018
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