For the first time, the James Webb Space Telescope has observed the chemical signature of carbon-rich dust grains in the early universe.
Astronomy
Jul 19, 2023
17
163
It's hard to see certain molecules react. The reaction is just that fast. Until now. A team of scientists devised a way to reveal time- and energy-resolved information on "dark" states of molecules—ones that are normally ...
Optics & Photonics
Apr 10, 2019
0
9
Much remains to be learned about how charge moves along the molecules that make up the layers of materials in solar cells. These details have remained hidden because of the challenges of direct, real-time observation of motion ...
Materials Science
Feb 6, 2019
0
5
When molecules interact with the oscillating field of a laser, an instantaneous, time-dependent dipole is induced. This very general effect underlies diverse physical phenomena such as optical tweezers, for which Arthur Ashkin ...
Optics & Photonics
Jan 18, 2019
0
12
EPFL scientists have shown how a solvent can interfere with electron transfer by using unprecedented time resolution in ultrafast fluorescence spectroscopy.
General Physics
Jul 2, 2013
0
0
University of Utah metallurgists used an old microwave oven to produce a nanocrystal semiconductor rapidly using cheap, abundant and less toxic metals than other semiconductors. They hope it will be used for more efficient ...
Nanomaterials
May 6, 2013
1
0
(Phys.org)—Galaxies have a voracious appetite for fuel—in this case fresh gas, but astronomers have had difficulty finding the pristine gas that should be falling onto galaxies. Now scientists have provided direct empirical ...
Astronomy
Jan 10, 2013
3
0
(PhysOrg.com) -- Many advanced laser technologies, such as laser spectroscopy, that use precise wavelengths of infrared, visible or ultraviolet laser light could benefit from using X-ray light as well. But to reach its full ...
General Physics
Feb 1, 2012
0
0
Scientists continuing to investigate a 50 year mystery have discovered another vital clue that could help pave the way for improved medicines. The results feature in a special edition of Nature celebrating the International ...
Biochemistry
Feb 4, 2011
0
0
A team of McGill chemists have discovered that a technique known as photoacoustic infrared spectroscopy could be used to identify the composition of pigments used in art work that is decades or even centuries old. Pigments ...
Analytical Chemistry
Sep 2, 2010
0
0
