How To Use Femtosecond In A Sentence
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Since the extra energy being transferred from one molecule to the next changes the way each absorbs and emits light, the flow of energy can be followed through optical spectroscopy, resolved on a femtosecond timescale.
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With pulse widths measured in picoseconds and femtoseconds, these lasers apply cutting energy for such brief periods of time that they don't create troublesome heat-effect zones.
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Each laser pulse packs a 220-millijoule punch into just 60 femtoseconds – an intensity “equivalent to the power of 1000 power plants,” says Kasparian.
Scientists Create Laser to Generate Clouds that Could Trigger Rain on Demand | Impact Lab
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The initial laser pulse measures 10 femtoseconds.
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The other theory contends this conversion takes much longer, about 500 femtoseconds.
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Suslick counters that because chemical dissociations occur in mere femtoseconds, reactions would have been well underway even in the acetone bubbles.
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Ultrafast lasers operate with pulses ranging from tens of femtoseconds to a few picoseconds.
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By measuring the emission time of the photoelectrons using the streak method, we have been able to determine both the duration and the chirp of the sub-femtosecond x-ray pulse.
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If you want to study this motion, you need femtosecond pulses of light.
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Femtosecond x-rays could shed new light on these coherent phonons by providing direct information about atomic displacements and enabling us to map out the energy transfer between vibrational modes and vibrational damping.
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At the sub-femtosecond level, a laser pulse contains only a few cycles of the carrier electromagnetic wave.
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The mechanism of filamentation formed by femtosecond pulse laser beam propagating in atmosphere is investigated.
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First, chirped femtosecond soliton-like solution in explicit form is obtained by using ansatz method, and then the linear stability for the soliton-like solution is analyzed by variational method.
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By the mid 1990s, scientists were building powerful lasers whose pulses were measured not in billionths or even trillionths of seconds but in thousandths of trillionths of seconds, or femtoseconds.
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The mechanism of filamentation formed by femtosecond pulse laser beam propagating in atmosphere is investigated.
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"It's the first time we've been able to watch the pathways the atoms follow in the first femtoseconds as the material transitions from solid to liquid," Lindenberg said.
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The system can steadily achieve the relative phase difference dynamic control of the femtosecond laser pulse pair almost without limitation of range.
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The company's patented process employs femtosecond laser processing of the target material resulting in an extremely thin (300nm) photoconduction layer applicable to both biased
Nano Tech Wire
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With pulse durations in the femtoseconds, scientists essentially could take the equivalent of a still photograph of extremely short-lived events, illuminating chemical interactions as they happened and creating a new understanding of how materials are formed from molecular constituents.
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In other words, what could you do with a femtosecond x-ray source?
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Femtosecond laser processing is an emerging field and has important application prospects.
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Hydrated electrons relax back to their unexcited state in about 50 femtoseconds.
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My research in nonlinear optics continued with special emphasis on interactions of picosecond and femtosecond laser pulses with condensed matter and of collision-induced optical coherences.
Nicolaas Bloembergen - Autobiography
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The Advanced iLasikTM uses a combination of the latest technology - iFSTM Advanced Femtosecond Laser and VISX Advanced CustomVueTM. iLasikTM is a knifeless Lasik with the safest technology that has been approved for NASA astronauts, US Air Force pilots and US Navy Top Gun pilots as well.
The Jakarta Post Breaking News
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In one second, there are more femtoseconds than there have been hours since the universe began roughly 14 billion years ago.
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Here, experimental findings of dissociative electron transfer reactions of halogenated molecules on ice surfaces in electron-stimulated desorption, electron trapping and femtosecond time-resolved laser spectroscopic measurements are reviewed.
Commander Coincidence
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Until recently, however, pulses on the order of a few femtoseconds were the shortest illumination sources available for the study of dynamic events.
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With femtosecond pulses, scientists could for the first time directly observe the shifts in interatomic spacings that take place during reactions.
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At least one embodiment provides for micromachining with pulsewidths in the range of femtoseconds to nanoseconds.
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Pulses of such short duration - lasting some 80 femtoseconds, or 80 quadrillionths of a second - shine a lightning-fast strobe light on the swift activities of atoms and molecules.
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The surgeon will use eithera microkeratome, femtosecond, or intralase laser to create this flap depending on the patient's cornea and treatment plan.
CreationWiki - Recent changes [en]
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The team created an electronic excitation by zapping the cluster with a femtosecond laser pulse.
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They sprayed oxygen and nitrogen molecules across the path of a laser tuned to emit pulses eight femtoseconds long and 15 microjoules in energy - just enough to split a single molecule.
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The supercontinuum source was obtained from pumping the microstructure fiber by - lens mode - locked femtosecond Ti: sapphire laser.
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A femtosecond is to one second in duration what one second is to 30 million years.
