Sentences with phrase «using ultrafast»

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.

They are also using these ultrafast pulses of light to create materials with new electronic and optical properties.

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.

Using ultrafast 4 - D imaging, the new UEC technique allows researchers to «film» the atomic mechanism behind the recording process in memories based on phase change materials.

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.

«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.

But who knows, in 50 years we may all be using ultrafast optics in our everyday lives,» concludes Samuel Bengtsson, PhD student in atomic physics.

We report direct determination of the structures and dynamics of interfacial water on a hydrophilic surface with atomic - scale resolution using ultrafast electron crystallography.

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.

The new multimodal imaging probe uses an ultrafast laser to create nonlinear optical effects in tissue that can reveal cancer and other diseases.

Not exact matches

Amazon is starting a service to deliver packages ultrafast to Prime consumers, using a crowdsourced network of drivers.

Gig.U intends to accelerate the deployment of next - generation networks in the U.S. by encouraging researchers — students and professors alike — to develop new applications and services that can make use of ultrafast data - transfer rates.

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.

Ultrafast electron crystallography with the use of a tilted optical geometry technique afforded the necessary atomic - scale spatial and temporal resolutions.

Nevertheless, quantum teleportation is a giant step toward one of physicists» most ambitious goals: building a quantum computer — an ultrafast, supersecure, huge - memory number - crunching device that uses atomic particles instead of transistors to retain and process information.

Researchers also use X-rays to study ultrafast molecular motions.

Using SLAC's instrument for ultrafast electron diffraction, researchers were able to directly see the motions of atomic nuclei in vibrating molecules for the first time.

In the past two years David Awschalom and his colleagues at the University of California at Santa Barbara have demonstrated new and ultrafast means for generating, transporting, and manipulating spins in semiconductors at up to 100 GHz using electric fields.

That makes them attractive for use in a new generation of ultrafast Wi - Fi, known as Wi - Gig.

This «beam - forming» capability makes the antennas crucial to ultrafast wireless applications, because they can focus a stream of high - frequency radio waves that would quickly dissipate using normal antennas.

Tiny structures that use light waves to perform ultrafast complex mathematical operations could be built from available materials, a new computer simulation suggests.

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.

«We use the spin current created by ultrafast heat conduction to generate spin transfer torque.

Using functional magnetic resonance imaging — a technique that monitors brain activity in real time — the Johns Hopkins group found reversing a decision requires ultrafast communication between two specific zones within the prefrontal cortex and another nearby structure called the frontal eye field, an area involved in controlling eye movements and visual awareness.

The group of Majed Chergui at EPFL, along with national and international colleagues, have shed light on this long - standing question by using a combination of cutting - edge experimental methods: steady - state angle - resolved photoemission spectroscopy (ARPES), which maps the energetics of the electrons along the different axis in the solid; spectroscopic ellipsometry, which determines the optical properties of the solid with high accuracy; and ultrafast two - dimensional deep - ultraviolet spectroscopy, used for the first time in the study of materials, along with state - of - the - art first - principles theoretical tools.

Besides having the potential to replace bulky, expensive amplifiers used today for the study of attosecond science and ultrafast optical information processing, the newly developed nanoscale - amplifier also provides a critical element to the optical interconnects toolkit, potentially providing regenerative amplification in short to long range interconnects.

Gig.U's goal is to accelerate the deployment of next - generation networks in the U.S. by encouraging researchers — students and professors alike — to develop new applications and services that can make use of ultrafast data transfer rates.

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.

The video system Liang's team used solves a problem in ultrafast medical imaging, which usually requires multiple takes — meaning that the event being recorded must be precisely repeatable.

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.

Tiny, ultrafast shutters can then be used to eliminate all but a single wavelength.

Many researchers are working on building ultrafast computers using Josephson logic.

«Simulations based on our measurements suggest that our method can probably be used to determine the structure of even smaller crystals consisting of only hundreds or thousands of molecules,» reports Chapman, who is also a member of the Hamburg Center for Ultrafast Imaging (CUI).

For ultrafast operation of such nano - devices, generation of spin current in picoseconds — one trillionth of a second — a time - scale that is difficult to achieve using electrical circuits, is highly desired,» Cahill added.

To study this, the researchers used their technique, ultrafast electron crystallography.

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.

The team used interferometric ultrafast velocimetry and pyrometry to characterize the optical properties of the shocked compressed water and determine its thermodynamic properties during the brief 10 - 20 nanosecond duration of the experiment, before pressure release waves decompressed the sample and vaporized the diamonds and the water.

Using methods of attophysics, the researchers are trying to track the ultrafast movement of electrons in molecules, or more precisely the restructuring of their electron shells.

Ben received his Ph.D. in 2010 from the University of California, Berkeley where he worked under Stephen R. Leone studying ultrafast electronic relaxation dynamics in atomic systems as well as competitive electronic - nuclear dynamics in superexcited states of small molecules using femtosecond soft X - ray / VUV light sources.

Astronomers using the National Science Foundation's Very Long Baseline Array (VLBA) of radio telescopes have discovered a cloud of gas apparently being struck by a jet of ultrafast particles powered by the energy of a supermassive black hole at the core of a galaxy 450 million light - years away.

At NEC in Japan, where I used to work, researchers have built these ultrafast photodetectors and tested them on computer processors.

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.

Astronomers using the National Science Foundation's Very Long Baseline Array of radio telescopes have discovered a cloud of gas apparently being struck by a jet of ultrafast particles powered by the energy of a supermassive black hole at the core of a galaxy 450 million light - years away.

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.

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.

Neuroscientist Matt Kaufman uses brief, ultrafast laser pulses to understand how the brain makes sensory - guided decisions...

SSDs are based on volatile memory such as DRAM and are characterized by ultrafast data access, generally less than 10 microseconds, and are used primarily to accelerate applications that would otherwise be held back by the latency of Flash SSDs or traditional HDDs.

«This new modern smartphone is packed with all of the best features of a traditional BlackBerry, along with a new speedy browser and a quick and easy user interface so you'll be able to enjoy all the benefits of the mobile internet including face - to - face calls using BBM Video over Three's Ultrafast network.»

Over 41 million people use smartphones and there is a target 100 % ultrafast broadband access for all households by 2022.