Results 1 to 10 of about 228,701 (163)
ECG Triggering in Ultra-High Field Cardiovascular MRI
Tomography, 2016 Cardiac magnetic resonance imaging at ultra-high field (B0 ≥ 7 T) potentially provides improved resolution and new opportunities for tissue characterization. Although an accurate synchronization of the acquisition to the cardiac cycle is essential, electrocardiogram (ECG) triggering at ultra-high field can be significantly impacted by the ...
Daniel Stab +2 more
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Towards High-Repetition-Rate Intense Terahertz Source With Metal Wire-Based Plasma
IEEE Photonics Journal, 2022 Terahertz radiation can provide unprecedented vistas in physical studies such as transient matter state control and advanced free-electron manipulation. Here, we present one feasible path towards high-repetition-rate, intense THz sources by combining the
Dongdong Zhang +9 more
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High‐Quality Femtosecond Laser Surface Micro/Nano‐Structuring Assisted by A Thin Frost Layer
Advanced Materials Interfaces, 2023 Femtosecond laser ablation has been demonstrated to be a versatile tool to produce micro/nanoscale features with high precision and accuracy. However, the use of high laser fluence to increase the ablation efficiency usually results in unwanted effects ...
Wenhai Gao +11 more
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Timing Fluctuation Correction of A Femtosecond Regenerative Amplifier
Crystals, 2021 We report on the long-term correction of a timing fluctuation between the femtosecond regenerative amplifier and the reference oscillator for the seed 100 PW laser system in the Station of Extreme Light (SEL).
Keyang Liu +5 more
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1.9 μm Few-Cycle Pulses Based on Multi-Thin-Plate Spectral Broadening and Nonlinear Self-Compression
IEEE Photonics Journal, 2021 In attosecond and strong-field physics, the acquisition of few-cycle laser sources open up a new area. We report a nonlinear pulse compression technology combining multi-thin-plate spectral broadening and nonlinear self-compression that generates a 0.52 ...
Beijie Shao +6 more
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Temporal Contrast Enhancement Based on the Self-Diffraction Process with Different Kerr Media
Photonics, 2022 In this study, the self-diffraction (SD) process proved to be a competitive method to achieve a seed pulse with high temporal contrast in ultra-intense lasers.
Yaping Xuan +5 more
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Ultra-High-Field MR Neuroimaging [PDF]
American Journal of Neuroradiology, 2014 At ultra-high magnetic fields, such as 7T, MR imaging can noninvasively visualize the brain in unprecedented detail and through enhanced contrast mechanisms. The increased SNR and enhanced contrast available at 7T enable higher resolution anatomic and vascular imaging.
P, Balchandani, T P, Naidich
openaire +2 more sources
Advanced Materials Interfaces, 2022 In recent years, a rapid advance in fabricating smart surfaces with tunable wettability have been witnessed. However, switchable superamphiphobic surface remains a great challenge today.
Kongyu Lou +6 more
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Multistage Smoothing Compressor for Multistep Pulse Compressors
Applied Sciences, 2023 Ultrahigh peak-power lasers are important scientific tools for frontier laser physics research, in which both the peak power improvement and operating safety are very important. Based on spatial-chirp-induced beam smoothing in both the near field and far
Shuman Du +4 more
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Beam Smoothing Based on Prism Pair for Multistep Pulse Compressor in PW Lasers
Photonics, 2022 Ultra-short, ultra-intense lasers provide unprecedented experimental tools and extreme physical conditions, enabling the exploration of the frontiers of basic physics.
Shuman Du +4 more
doaj +1 more source