Search Results - "Coffee, R. N."
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Attosecond time–energy structure of X-ray free-electron laser pulses
Published in Nature photonics (05-03-2018)“…The time–energy information of ultrashort X-ray free-electron laser pulses generated by the Linac Coherent Light Source is measured with attosecond resolution…”
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2
X-ray and optical wave mixing
Published in Nature (London) (30-08-2012)“…Light–matter interactions are ubiquitous, and underpin a wide range of basic research fields and applied technologies. Although optical interactions have been…”
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3
Spectral encoding of x-ray/optical relative delay
Published in Optics express (24-10-2011)“…We present a new technique for measuring the relative delay between a soft x-ray FEL pulse and an optical laser that indicates a sub 25 fs RMS measurement…”
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4
X-ray parametric down-conversion in the Langevin regime
Published in Physical review letters (06-07-2012)“…We experimentally and theoretically study the coincidence count rate for down-converted x-ray photons. Because of photoionization, parametric down-conversion…”
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5
Ultrafast X-ray Auger probing of photoexcited molecular dynamics
Published in Nature communications (23-06-2014)“…Molecules can efficiently and selectively convert light energy into other degrees of freedom. Disentangling the underlying ultrafast motion of electrons and…”
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6
Accurate prediction of X-ray pulse properties from a free-electron laser using machine learning
Published in Nature communications (05-06-2017)“…Free-electron lasers providing ultra-short high-brightness pulses of X-ray radiation have great potential for a wide impact on science, and are a critical…”
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7
Multicolor operation and spectral control in a gain-modulated x-ray free-electron laser
Published in Physical review letters (27-09-2013)“…We show that the spectral properties of a self-amplified spontaneous emission x-ray free-electron laser can be controlled by modulating the gain in magnetic…”
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8
Sub-femtosecond precision measurement of relative X-ray arrival time for free-electron lasers
Published in Nature photonics (01-09-2014)“…Some X-ray free-electron laser facilities are pushing towards sub-10 fs pulses, making it desirable to reduce errors in X-ray/optical delay measurements to the…”
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9
Time-resolved pump-probe experiments at the LCLS
Published in Optics express (16-08-2010)“…The first time-resolved x-ray/optical pump-probe experiments at the SLAC Linac Coherent Light Source (LCLS) used a combination of feedback methods and…”
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10
Symmetry breakdown of electron emission in extreme ultraviolet photoionization of argon
Published in Nature communications (07-11-2018)“…Short wavelength free-electron lasers (FELs), providing pulses of ultrahigh photon intensity, have revolutionized spectroscopy on ionic targets. Their…”
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11
Auger electron angular distribution of double core-hole states in the molecular reference frame
Published in Physical review letters (20-08-2010)“…The Linac Coherent Light Source free electron laser is a source of high brightness x rays, 2×10(11) photons in a ∼5 fs pulse, that can be focused to produce…”
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12
Dynamics of hollow atom formation in intense x-ray pulses probed by partial covariance mapping
Published in Physical review letters (13-08-2013)“…When exposed to ultraintense x-radiation sources such as free electron lasers (FELs) the innermost electronic shell can efficiently be emptied, creating a…”
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13
X-ray-optical cross-correlator for gas-phase experiments at the Linac Coherent Light Source free-electron laser
Published in Applied physics letters (19-03-2012)“…X-ray-optical pump-probe experiments at the Linac Coherent Light Source (LCLS) have so far been limited to a time resolution of 280 fs fwhm due to timing…”
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14
Few-femtosecond resolved imaging of laser-driven nanoplasma expansion
Published in New journal of physics (01-04-2022)“…Abstract The free expansion of a planar plasma surface is a fundamental non-equilibrium process relevant for various fields but as-yet experimentally still…”
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15
Multiphoton ionization as a clock to reveal molecular dynamics with intense short x-ray free electron laser pulses
Published in Physical review letters (26-12-2012)“…We investigate molecular dynamics of multiple ionization in N2 through multiple core-level photoabsorption and subsequent Auger decay processes induced by…”
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16
Nonlinear Ultrafast Spin Scattering in the Skyrmion Phase of Cu 2 OSeO 3
Published in Physical review letters (07-09-2017)Get full text
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17
Covariance mapping of two-photon double core hole states in C2H2 and C2H6 produced by an x-ray free electron laser
Published in New journal of physics (2015)“…Few-photon ionization and relaxation processes in acetylene (C2H2) and ethane (C2H6) were investigated at the linac coherent light source x-ray free electron…”
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18
Few-femtosecond resolved imaging of laser-driven nanoplasma expansion
Published 15-03-2022“…The free expansion of a planar plasma surface is a fundamental non-equilibrium process relevant for various fields but as-yet experimentally still difficult to…”
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19
Polarization control in an X-ray free-electron laser
Published in Nature photonics (01-07-2016)“…X-ray free-electron lasers are unique sources of high-brightness coherent radiation. However, existing devices supply only linearly polarized light, precluding…”
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20
Strong-field impulsive alignment in the presence of high temperatures and large centrifugal distortion
Published in Physical review. A, Atomic, molecular, and optical physics (01-09-2008)Get full text
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