Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Weichman, K"'
Autor:
Bruhaug, G., Rinderknecht, H. G., Weichman, K., VanDusen-Gross, M., Palastro, J. P., Wei, M. S., Regan, S. P., E, Y., Garriga, K., Zhang, X. -C., Collins, G. W., Rygg, J. R.
Inference of joule-class THz radiation sources from microchannel targets driven with hundreds of joule, picosecond lasers is reported. THz sources of this magnitude are useful for nonlinear pumping of matter and for charged-particle acceleration and
Externí odkaz:
http://arxiv.org/abs/2311.07718
Electron-positron pair creation occurs throughout the universe in the environments of extreme astrophysical objects, such as pulsar magnetospheres and black hole accretion disks. The difficulty of emulating these environments in the laboratory has mo
Externí odkaz:
http://arxiv.org/abs/2310.13840
Autor:
Palastro, J. P., Miller, K. G., Follett, R. K., Ramsey, D., Weichman, K., Arefiev, A. V., Froula, D. H.
Electrostatic waves play a critical role in nearly every branch of plasma physics from fusion to advanced accelerators, to astro, solar, and ionospheric physics. The properties of planar electrostatic waves are fully determined by the plasma conditio
Externí odkaz:
http://arxiv.org/abs/2309.06193
Autor:
Weichman, K., Miller, K. G., Malaca, B., Mori, W. B., Pierce, J. R., Ramsey, D., Vieira, J., Vranic, M., Palastro, J. P.
Numerical modeling of electromagnetic waves is an important tool for understanding the interaction of light and matter, and lies at the core of computational electromagnetics. Traditional approaches to injecting and evolving electromagnetic waves, ho
Externí odkaz:
http://arxiv.org/abs/2307.04843
Autor:
Malaca, B., Pardal, M., Ramsey, D., Pierce, J., Weichman, K., Andriyash, I., Mori, W. B., Palastro, J. P., Fonseca, R. A., Vieira, J.
Coherent light sources, such as free electron lasers, provide bright beams for biology, chemistry, physics, and advanced technological applications. Increasing the brightness of these sources requires progressively larger devices, with the largest be
Externí odkaz:
http://arxiv.org/abs/2301.11082
Autor:
Ramsey, D., Di Piazza, A., Formanek, M., Franke, P., Froula, D. H., Malaca, B., Mori, W. B., Pierce, J. R., Simpson, T. T., Vieira, J., Vranic, M., Weichman, K., Palastro, J. P.
The intensity peak of a "flying focus" travels at a programmable velocity over many Rayleigh ranges while maintaining a near-constant profile. Assessing the extent to which these features can enhance laser-based applications requires an accurate desc
Externí odkaz:
http://arxiv.org/abs/2210.07947
We introduce the first approach to volumetrically generate relativistically thermal plasma at gas-jet--accessible density. Using fully kinetic simulations and theory, we demonstrate that two stages of direct laser acceleration driven by two laser pul
Externí odkaz:
http://arxiv.org/abs/2202.07015
Autor:
Chang, Y. Y., Cheng, X., Hannasch, A., LaBerge, M., Shaw, J. M., Weichman, K., Welch, J., Bernstein, A., Henderson, W., Zgadzaj, R., Downer, M. C.
We visualize plasma bubbles driven by 0.67 PW laser pulses in plasma of density $n_e \approx 5\times10^{17}$ ${\rm cm}^{-3}$ by imaging Faraday rotation patterns imprinted on linearly-polarized probe pulses of wavelength $\lambda_{pr} = 1.05 \mu$m an
Externí odkaz:
http://arxiv.org/abs/2109.11611
Autor:
Ramsey, D., Malaca, B., Di Piazza, A., Franke, M. Formanek. P., Froula, D. H., Pardal, M., Simpson, T. T., Vieira, J., Weichman, K., Palastro, J. P.
In nonlinear Thomson scattering, a relativistic electron reflects and re-radiates the photons of a laser pulse, converting optical light to x rays or beyond. While this extreme frequency conversion offers a promising source for probing high-energy-de
Externí odkaz:
http://arxiv.org/abs/2108.04044
Autor:
Weichman, K., Miller, K.G., Malaca, B., Mori, W.B., Pierce, J.R., Ramsey, D., Vieira, J., Vranic, M., Palastro, J.P.
Publikováno v:
In Computer Physics Communications May 2024 298
