Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Ido Barth"'
Axial particle loss is one of the main challenges for fusion aimed, linear magnetic mirror plasma configurations. One way to mitigate this disadvantage and increase the confinement time is to use a multiple mirrors setup. The idea is to reduce the ou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ceb787e3ec07529a849405f36be76f06
http://arxiv.org/abs/2105.09614
http://arxiv.org/abs/2105.09614
Publikováno v:
Physical Review E. 95
The energy of plasma waves can be moved up and down the spectrum using chirped modulations of plasma parameters, which can be driven by external fields. Depending on whether the wave spectrum is discrete (bounded plasma) or continuous (boundless plas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40eb866aef80068e4cf440c59e6560e0
https://doi.org/10.1103/physreve.95.053212
https://doi.org/10.1103/physreve.95.053212
Autor:
Nathaniel J. Fisch, Ido Barth
Publikováno v:
Journal of Physics: Conference Series. 1206:012015
Backward Raman amplifiers provide a promising path to the next generation of short pulse high-intensity lasers that can go beyond the damage limit of conventional materials. The main idea is to couple a short seed and a long counter-propagating pump
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e3e9acae98e2d73352feff8d4b8cb3d
https://doi.org/10.1088/1742-6596/1206/1/012015
https://doi.org/10.1088/1742-6596/1206/1/012015
Publikováno v:
Physical review. E. 93(6)
Backward Raman amplification is limited by relativistic nonlinear dephasing resulting in saturation of the leading spike of the amplified pulse. Pump detuning is employed to mitigate the relativistic phase mismatch and to overcome the associated satu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d95ff4f7ce8d33ef44b96ff2fe718164
https://pubmed.ncbi.nlm.nih.gov/27415380
https://pubmed.ncbi.nlm.nih.gov/27415380
Autor:
Nathaniel J. Fisch, Ido Barth
When a laser passes through underdense plasmas, Raman and Brillouin Backscattering can reflect a substantial portion of the incident laser energy. This is a major loss mechanism, for example, in employing lasers in inertial confinement fusion. Howeve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ff7d1e8250ce49e6d32797f77ebcb3d
It is proposed to replace the traditional counterpropagating laser seed in backward Raman amplifiers with a plasma wave seed. In the linear regime, namely, for a constant pump amplitude, a plasma wave seed may be found by construction that strictly p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a19be2ea60e86adf51ca509e01a8d517
When the background density in a bounded plasma is modulated in time, discrete modes become coupled. Interestingly, for appropriately chosen modulations, the average plasmon energy might be made to grow in a ladder-like manner, achieving up-conversio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ba065eb3a7992580ca8a744d344d3bd
Autor:
Ido Barth, Lazar Friedland
Publikováno v:
Physical Review Letters. 113
The parametric ladder climbing (successive Landau-Zener-type transitions) and the quantum saturation of the threshold for the classical parametric autoresonance due to the zero point fluctuations at low temperatures are discussed. The probability for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97e9c2eb533950bff5ff3bea34842412
https://doi.org/10.1103/physrevlett.113.040403
https://doi.org/10.1103/physrevlett.113.040403
Autor:
Lazar Friedland, Ido Barth
The two-photon ladder climbing (successive two-photon Landau-Zener-type transitions) in a chirped quantum nonlinear oscillator and its classical limit (subharmonic autoresonance) are discussed. An isomorphism between the chirped quantum-mechanical on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0914f039a8195654d9c380dbb31c05b1
http://arxiv.org/abs/1305.4601
http://arxiv.org/abs/1305.4601
Publikováno v:
Physics of Plasmas. 23:053118
Plasma-based amplification by strongly coupled Brillouin scattering has recently been suggested for the compression of a short seed laser to ultrahigh intensities in sub-quarter-critical-density plasmas. However, by employing detailed spectral analys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab3a9f8aeab25a339d6c1d5121b74626
https://doi.org/10.1063/1.4951027
https://doi.org/10.1063/1.4951027