Zobrazeno 1 - 10
of 892
pro vyhledávání: '"Norreys P"'
Autor:
Howard, S., Weisse, N., Schroeder, J., Barbero, C., Alonso, B., Sola, I., Norreys, P., Döpp, A.
Wavefront reconstruction is a critical component in various optical systems, including adaptive optics, interferometry, and phase contrast imaging. Traditional reconstruction methods often employ either the Cartesian (pixel) basis or the Zernike poly
Externí odkaz:
http://arxiv.org/abs/2411.02985
Autor:
Ruskov, Rusko T., Bingham, Robert, Silva, Luis O., Harper, Max, Aboushelbaya, Ramy, Myatt, Jason F., Norreys, Peter A.
There is renewed interest in direct-drive inertial confinement fusion, following the milestone December 2022 3.15 MJ ignition result on the National Ignition Facility. A key obstacle is the control of the two plasmon decay instability. Here, recent a
Externí odkaz:
http://arxiv.org/abs/2404.17384
Publikováno v:
BMVC 2023
Optical imaging systems are inherently limited in their resolution due to the point spread function (PSF), which applies a static, yet spatially-varying, convolution to the image. This degradation can be addressed via Convolutional Neural Networks (C
Externí odkaz:
http://arxiv.org/abs/2401.04680
Autor:
Atonga, Eduard, Martineau, Killian, Aboushelbaya, Ramy, Barrau, Aurélien, von der Leyen, Marko, Howard, Sunny, James, Abigail, Lee, Jordan, Lin, Chunshan, Martin, Heath, Ouatu, Iustin, Paddock, Robert, Ruskov, Rusko, Timmis, Robin, Norreys, Peter
Recent advances in high-energy and high-peak-power laser systems have opened up new possibilities for fundamental physics research. In this work, the potential of twisted light for the generation of gravitational waves in the high frequency regime is
Externí odkaz:
http://arxiv.org/abs/2309.04191
Presented is a novel way to combine snapshot compressive imaging and lateral shearing interferometry in order to capture the spatio-spectral phase of an ultrashort laser pulse in a single shot. A deep unrolling algorithm is utilised for the snapshot
Externí odkaz:
http://arxiv.org/abs/2303.03555
Autor:
Weiße, N., Esslinger, J., Howard, S., Foerster, F. M., Haberstroh, F., Doyle, L., Norreys, P., Schreiber, J., Karsch, S., Doepp, A.
Knowledge of spatio-temporal couplings such as pulse-front tilt or curvature is important to determine the focused intensity of high-power lasers. Common techniques to diagnose these couplings are either qualitative or require hundreds of measurement
Externí odkaz:
http://arxiv.org/abs/2303.01360
Autor:
R. J. L. Timmis, R. W. Paddock, I. Ouatu, J. Lee, S. Howard, E. Atonga, R. T. Ruskov, H. Martin, R. H. W. Wang, R. Aboushelbaya, M. W. von der Leyen, E. Gumbrell, P. A. Norreys
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract The commissioning of multi-petawatt class laser facilities around the world is gathering pace. One of the primary motivations for these investments is the acceleration of high-quality, low-emittance electron bunches. Here we explore the inte
Externí odkaz:
https://doaj.org/article/968dfecd2e98469399cf65ecf85c61ff
Autor:
Feng, Q. S., Aboushelbaya, R., Mayr, M. W., Wang, W. P., Trines, R. M. G. M., Spiers, B. T., Paddock, R. W., Ouatu, I., Timmis, R., Wang, R. H. W., Bingham, R., Norreys, P. A.
Laser beams carrying orbital angular momentum (OAM) provide an additional degree of freedom and have found wide applications ranging from optical communications and optical manipulation to quantum information. The efficient generation and operation o
Externí odkaz:
http://arxiv.org/abs/2202.00105
Autor:
Ouatu, I., Spiers, B. T., Aboushelbaya, R., Feng, Q., Mayr, M. W., Paddock, R. W., Timmis, R., Ticos, C., Krushelnick, K. M., Norreys, P. A.
A paradigm shift in the physics of laser-plasma interactions is approaching with the commissioning of multi-petawatt laser facilities world-wide. Radiation reaction processes will result in the onset of electron-positron pair cascades and, with that,
Externí odkaz:
http://arxiv.org/abs/2109.14871
Autor:
Spiers, Ben T., Aboushelbaya, Ramy, Feng, Qingsong, Mayr, Marko W., Ouatu, Iustin, Paddock, Robert W., Timmis, Robin, Wang, Robin H. W., Norreys, Peter A.
Publikováno v:
Phys. Rev. E 104, 045201 (2021)
Proton radiography is a widely-fielded diagnostic used to measure magnetic structures in plasma. The deflection of protons with multi-MeV kinetic energy by the magnetic fields is used to infer their path-integrated field strength. Here, the use of to
Externí odkaz:
http://arxiv.org/abs/2103.11266