Search Results - "Halavanau, Aliaksei"
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1
Population inversion X-ray laser oscillator
Published in Proceedings of the National Academy of Sciences - PNAS (07-07-2020)“…Oscillators are at the heart of optical lasers, providing stable, transform-limited pulses. Until now, laser oscillators have been available only in the…”
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2
Very high brightness and power LCLS‐II hard X‐ray pulses
Published in Journal of synchrotron radiation (01-05-2019)“…The feasibility of generating X‐ray pulses in the 4–8 keV fundamental photon energy range with 0.65 TW peak power, 15 fs pulse duration and 9 × 10−5 bandwidth…”
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3
Tunable x-ray free electron laser multi-pulses with nanosecond separation
Published in Scientific reports (28-02-2022)“…X-ray Free Electron Lasers provide femtosecond x-ray pulses with narrow bandwidth and unprecedented peak brightness. Special modes of operation have been…”
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4
Generation of intense phase-stable femtosecond hard X-ray pulse pairs
Published in Proceedings of the National Academy of Sciences - PNAS (22-03-2022)“…Coherent nonlinear spectroscopies and imaging in the X-ray domain provide direct insight into the coupled motions of electrons and nuclei with resolution on…”
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5
Boundary scattering in the ϕ 4 model
Published in The journal of high energy physics (01-05-2017)“…Abstract We study boundary scattering in the ϕ 4 model on a half-line with a oneparameter family of Neumann-type boundary conditions. A rich variety of…”
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6
Fast modeling of regenerative amplifier free-electron lasers
Published in Physical review research (18-12-2023)“…High-gain free-electron lasers (FELs) are becoming important light sources at short wavelengths such as the EUV and X-ray regimes. A particularly promising…”
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7
Statistical theory of a self-seeded free electron laser with noise pedestal growth
Published in Physical review. Accelerators and beams (02-01-2020)“…We study the impact of a spectral noise pedestal on the statistical properties of a self-seeded free electron laser (FEL). The broad pedestal is assumed to…”
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8
Reconstruction of x-ray free-electron laser pulse duration and energy chirp from spectral intensity fluctuations
Published in Physical review. Accelerators and beams (01-03-2023)“…Accurate measurements of the x-ray pulse duration produced by x-ray free-electron lasers (XFELs) typically rely on longitudinal electron beam phase space…”
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9
Seeded stimulated X-ray emission at 5.9 keV
Published in Optica (20-04-2023)“…X-ray free-electron lasers (XFELs) provide intense pulses that can generate stimulated X-ray emission, a phenomenon that has been observed and studied in…”
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10
X-ray diagnostics for the cavity-based x-ray free-electron laser project
Published in Physical review. Accelerators and beams (04-11-2024)“…The success of x-ray free-electron lasers (XFELs) in recent years has greatly advanced many scientific fields. However, most of these XFELs suffer from a low…”
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11
Microbunch rotation in an x-ray free-electron laser using a first-order achromatic bend
Published in Physical review. Accelerators and beams (01-03-2024)“…Electrons in an x-ray free electron laser (XFEL) develop periodic density fluctuations, known as microbunches, which enable the exponential gain of x-ray power…”
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12
Statistical properties of spontaneous synchrotron radiation with arbitrary degree of coherence
Published in Physical review. Accelerators and beams (01-09-2020)“…In a storage ring, turn-to-turn fluctuations in the intensity of spontaneous synchrotron radiation occur due to two mechanisms. The first mechanism is the…”
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13
Measurements of undulator radiation power noise and comparison with ab initio calculations
Published in Physical review. Accelerators and beams (01-04-2021)“…Generally, turn-to-turn fluctuations of synchrotron radiation power in a storage ring depend on the 6D phase-space distribution of the electron bunch. This…”
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14
Time‐dependent dynamical Bragg diffraction in deformed crystals by the beam propagation method
Published in Acta crystallographica. Section A, Foundations and advances (01-11-2022)“…This paper describes how to efficiently solve time‐dependent X‐ray dynamic diffraction problems in distorted crystals with a fast Fourier transform based beam…”
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15
Enhanced Self-Seeding with Ultrashort Electron Beams
Published in Physical review letters (24-07-2020)“…We describe a new method to produce intensity stable, highly coherent, narrow-band x-ray pulses in self-seeded free electron (FEL) lasers. The approach uses an…”
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16
Boundary scattering in the Φ$^{4}$ model
Published in The journal of high energy physics (19-05-2017)“…Here, we study boundary scattering in the $\phi^4$ model on a half-line with a one-parameter family of Neumann-type boundary conditions. A rich variety of…”
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17
Characterization of a hard X-ray self-seeding diamond crystal orientation
Published in Optics express (21-11-2022)“…We present a method to accurately control the photon energies for hard X-ray Self-seeding schemes with a single crystal monochromator in transmissive geometry…”
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18
Experimental setup for high‐resolution characterization of crystal optics for coherent X‐ray beam applications
Published in Journal of applied crystallography (01-02-2023)“…Stanford Synchrotron Radiation Lightsource serves a wide scientific community with its variety of X‐ray capabilities. Recently, a wiggler X‐ray source located…”
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19
Transverse Beam Emittance Measurement by Undulator Radiation Power Noise
Published in Physical review letters (02-04-2021)“…Generally, turn-to-turn power fluctuations of incoherent spontaneous synchrotron radiation in a storage ring depend on the 6D phase-space distribution of the…”
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20
Population inversion X-ray laser oscillator
Published in Proceedings of the National Academy of Sciences - PNAS (22-06-2020)“…Oscillators are at the heart of optical lasers, providing stable, transform-limited pulses. Until now, laser oscillators have been available only in the…”
Get full text
Journal Article