Zobrazeno 1 - 10
of 386
pro vyhledávání: '"Palastro J"'
Autor:
Ramsey, D., Malaca, B., Simpson, T. T., Formanek, M., Mack, L. S., Vieira, J., Froula, D. H., Palastro, J. P.
Laser-driven free-electron lasers (LDFELs) replace magnetostatic undulators with the electromagnetic fields of a laser pulse. Because the undulator period is half the wavelength of the laser pulse, LDFELs can amplify x rays using lower electron energ
Externí odkaz:
http://arxiv.org/abs/2410.12975
The Dirac equation has resided among the greatest successes of modern physics since its emergence as the first quantum mechanical theory fully compatible with special relativity. This compatibility ensures that the expectation value of the velocity i
Externí odkaz:
http://arxiv.org/abs/2405.00209
We show that the dynamics of high-intensity laser pulses undergoing self-focused propagation in a nonlinear medium can be understood in terms of the topological constraints imposed by the formation and evolution of spatiotemporal optical vortices (ST
Externí odkaz:
http://arxiv.org/abs/2403.04669
Spatiotemporal control encompasses a variety of techniques for producing laser pulses with dynamic intensity peaks that move independently of the group velocity. This controlled motion of the intensity peak offers a new approach to optimizing laser-b
Externí odkaz:
http://arxiv.org/abs/2312.12188
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:
Ambat, M. V., Shaw, J. L., Pigeon, J. J., Miller, K. G., Simpson, T. T., Froula, D. H., Palastro, J. P.
"Flying focus" techniques produce laser pulses with dynamic focal points that travels distances much greater than a Rayleigh length. The implementation of these techniques in laser-based applications requires the design of optical configurations that
Externí odkaz:
http://arxiv.org/abs/2307.05313
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:
Nguyen, K. L., Yin, L., Albright, B. J., Edgell, D. H., Follett, R. K., Turnbull, D., Froula, D. H., Palastro, J. P.
In cross-beam energy transfer (CBET), the interference of two laser beams ponderomotively drives an ion-acoustic wave that coherently scatters light from one beam into the other. This redirection of laser beam energy can severely inhibit the performa
Externí odkaz:
http://arxiv.org/abs/2304.13268