Active cooling of pulse compression diffraction gratings for high energy, high average power
ultrafast lasers
«
Ultrafast laser technique developed to observe electron action.»
The team borrowed an idea from Chang's earlier innovative work in the area of
ultrafast lasers.
He entered City College of New York in Manhattan as an engineering major and soon found a mentor, Robert Alfano, inventor of
the ultrafast laser.
This type of manipulation requires a powerful light source such as
an ultrafast laser and would last for only a femtosecond, or one quadrillionth of a second.
Ultrafast lasers have measured how long electrons take to be booted from a helium atom with zeptosecond precision — trillionths of a billionth of a second
Another novelty of this work is the application of
ultrafast lasers to shape the geometry of the particles and refine their properties.
«By using
ultrafast lasers, which are very intense but very short in duration (of the order of a billion trillion flashes per second), we have realized a world record in optical quality, where all the obtained shaped particles behave like nano - sized clones,» explains Andrés Guerrero Martínez, researcher of the Ramón y Cajal Program at the Faculty of Chemical Sciences of the UCM.
Using
ultrafast lasers, they found that the interaction between the sun's energy and the chlorophyll molecules in a bacterium relies on a piece of quantum mechanical weirdness known as superposition, where a single photon's energy can temporarily be in many different states at once.
Ultrafast laser light creates heat transport through the nonmagnetic / ferromagnetic / nonmagnetic tri-layer.
The new multimodal imaging probe uses
an ultrafast laser to create nonlinear optical effects in tissue that can reveal cancer and other diseases.
Using
ultrafast laser pulses that speed up the data recording process, Caltech researchers adopted a novel technique, ultrafast electron crystallography (UEC), to visualize directly in four dimensions the changing atomic configurations of the materials undergoing the phase changes.
To unearth the bacteria's inner workings, the researchers zapped the connective proteins with multiple
ultrafast laser pulses.
The research «represents a benchmark contribution» to the development of liquid - cooled computers and will pave the way for new materials applications created by
ultrafast lasers, says physicist Costas Fotakis, director of the Institute of Electronic Structure and Laser in Heraklion, Greece.
In the future,
ultrafast laser crystallography promises to illuminate a broad range of biomolecules, from light sensitive photoreceptors to other vital proteins.
The team placed two diamonds in front of
an ultrafast laser, which zapped them with a pulse of light that lasted 100 femtoseconds (or 10 - 13 seconds).
«Nonlinear stage - scanning confocal microscopy is critical because it allows us to rapidly measure the nonlinear emission from thousands of different nanostructures while minimizing the potential systematic errors, such as intensity or beam pointing variations, often associated with tuning the wavelength of
an ultrafast laser,» O'Brien says.
One - micrometer wavelength
ultrafast laser emission is transformed to a powerful tool for ultrabroadband mid-infrared spectroscopy.
Laser Quantum is a world - class manufacturer of revolutionary continuous wave and
ultrafast laser sources.
The 280 - page report, «Opportunities in Intense
Ultrafast Lasers: Reaching for the Brightest Light», recommends increased coordination and collaboration by government labs and agencies, universities, and industry to build up U.S. laser facilities and capabilities.
«What industry is seeing is the push toward higher - average - power lasers and
ultrafast lasers, and it's starting to impact machining and industrial applications,» Leemans says.
Neuroscientist Matt Kaufman uses brief,
ultrafast laser pulses to understand how the brain makes sensory - guided decisions...
Stockport, Konstanz & San Jose About Blog Specialist manufacturers of
ultrafast lasers, DPSS lasers and solid state laser sources for scientific and industrial applications.
Stockport, Konstanz & San Jose About Blog Specialist manufacturers of
ultrafast lasers, DPSS lasers and solid state laser sources for scientific and industrial applications.
Not exact matches
Using an
ultrafast, ultraprecise ultraviolet
laser, a team of physicists and biologists at Vanderbilt University has taken an important step toward understanding the nature of these trigger signals.
This novel, less invasive way of detecting disease using light salient properties was employed for the first time in 1991 to identify a fingerprint for cancer in tissue by a team led by Robert Alfano, a Distinguished Professor of Science and Engineering at The City College of New York, and director of The Institute for
Ultrafast Spectroscopy and
Lasers (IUSL) of the City University of New York at City College.
«We have captured the first images of an ensemble of isolated molecules with an X-ray
laser,» said DESY scientist Küpper, who is also a professor at the University of Hamburg and a member of the Hamburg Centre for
Ultrafast Imaging (CUI) cluster of excellence.
In a combined experimental and theoretical study on
ultrafast excitation of atoms in intense short pulse
laser fields scientists of the Max Born Institute succeeded to show that the prevailing and seemingly disparate intuitive pictures usually used to describe interaction of atoms with intense
laser fields can be ascribed to a single nonlinear process.
As described in a paper just published in the Nature partner journal npj Quantum Materials, the team developed an «
ultrafast electron diffraction» system — a new
laser - driven imaging technique and the first of its kind in the world — to capture the subtle atomic - scale lattice distortions.
And in the longer term, they could lead to bright,
ultrafast, short - wavelength
lasers that are much more compact, and perhaps even electronic devices that operate millions of times faster than current technology, says David Reis, a co-author of the report and deputy director of the Stanford PULSE Institute, a joint institute of SLAC and Stanford.
This distinction makes the camera particularly apt for imaging
ultrafast, non-repetitive phenomena such as a single
laser pulse or the short - lived, intermediate states of a biochemical reaction.
Using the Washington University technique, called compressed
ultrafast photography (CUP), Wang and his colleagues have made movies of the images they took with single
laser shots of four physical phenomena:
laser pulse reflection, refraction, faster - than light propagation of what is called non-information, and photon racing in two media.
89
Laser - Emitting Chips Promise
Ultrafast Computers Researchers announced they had found a promising way to accelerate computer chips to the speed of light...
This idyll has now been heavily shaken up by a team of physicists led by Matthias Kling, the leader of the
Ultrafast Nanophotonics group in the Department of Physics at Ludwig - Maximilians - Universitaet (LMU) in Munich, and various research institutions, including the Max Planck Institute of Quantum Optics (MPQ), the Institute of Photonics and Nanotechnologies (IFN - CNR) in Milan, the Institute of Physics at the University of Rostock, the Max Born Institute (MBI), the Center for Free - Electron
Laser Science (CFEL) and the University of Hamburg.
The researchers pumped a hybrid waveguide with an
ultrafast, intense
laser pulse and produced a very broad light spectrum in the near and mid-infrared range (1.1?
HZB - scientist Emad Aziz, who leads the Joint lab between HZB and Freie Universität Berlin, has developed and installed a new tool to investigate
ultrafast dynamics in solutions and at interfaces with the use of ultrashort
laser pulses.
«This technology allows for the labeling of just one circulating pathological cell among billions of other normal blood cells by
ultrafast changing color of photosensitive proteins inside the cell in response to
laser light,» explains Dr. Galanzha.
Although the members of the
ultrafast community often measured the spectrum of their mode - locked
lasers, they rarely did so with sufficient resolution to observe the underlying comb spectrum; instead the lines would blend together and look like a continuous band of frequencies.
Converging Disciplines For most of the past 40 years,
ultrafast -
laser researchers — those who focus on making and using the shortest pulses — largely ignored the pulse phase and the theoretical comblike spectrum of an ideal series of pulses.
Ray of Light: A new generation of
ultrafast X-ray
lasers is redefining the field of X-ray crystallography, revealing never - before - seen features and dynamic processes.
X-ray free - electron
lasers generate flashes of X-ray light short and intense enough to make movies of chemical reactions and other
ultrafast phenomena, but the electrons must have a very tight energy spread to generate the coherent X-rays necessary for a clear picture.
An international team of scientists is getting closer to the answer thanks to unprecedented, atomic - scale images of a protein complex found in plants, algae, and cyanobacteria captured by
ultrafast X-ray
lasers.
Heebner was cited for his «numerous innovations, achievements and technical leadership in high - energy
laser systems and integrated optics including nonlinear optical microresonators and
ultrafast light deflectors.»
TOPTICA is a privately held technology driven company, which develops, produces and sells diode and
ultrafast fiber
lasers for scientific and industrial applications.
Free - electron
lasers have opened new frontiers in studying materials and chemistry at the nanoscale and beyond, and Filippetto said he hopes to pave new ground with HiRES, too, using a technique known as «
ultrafast electron diffraction,» or UED, that is similar to X-ray diffraction.
Albert, an expert in
ultrafast X-ray sources and
laser - plasma interactions, joined the Lab as a postdoctoral researcher in 2008.
There are tradeoffs in using X-rays vs. electrons to study
ultrafast processes at ultrasmall scales, he noted, though «even if the capabilities are similar, it's worth pursuing» because of the smaller size and lesser cost of machines like APEX and HiRES compared to X-ray free - electron
lasers.
The workshop will bring together BES funded scientists that «own'these key problems in solar energy conversion with the early adopters of
ultrafast X-ray
laser science.»
These opportunities include using
ultrafast X-ray sources to extract time - dependent structural information from proteins; and revolutionary possibilities created by X-ray Free Electron
Laser radiation for an entirely new regime of pre-damage serial femtosecond crystallography.
These opportunities include the use of short - pulsed X-ray sources for extracting time - dependent structural information from proteins; and the revolutionary new possibilities created by X-ray Free Electron
Lasers, which combine
ultrafast X-ray pulses with high brilliance focussing capabilities to create an entirely new regime of pre-damage time - resolved serial femtosecond crystallography on unprecedented time - scales.