Acceleration of ions with a nonadiabatic linearly polarized laser pulse

2011 ◽  
Vol 375 (7) ◽  
pp. 1135-1141
Author(s):  
Victor V. Kulagin ◽  
Vladimir A. Cherepenin ◽  
Vladimir N. Kornienko ◽  
Hyyong Suk
Keyword(s):  
Laser Pulse ◽  
Linearly Polarized

scholarly journals Cylindrically and non-cylindrically symmetric expansion dynamics of tin microdroplets after ultrashort laser pulse impact

2021 ◽  
Vol 127 (2) ◽  
Author(s):  
Tiago de Faria Pinto ◽  
Jan Mathijssen ◽  
Randy Meijer ◽  
Hao Zhang ◽  
Alex Bayerle ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Droplet Deformation ◽  
Cylindrically Symmetric ◽  
Linearly Polarized ◽  
Particle Hydrodynamics ◽  
Deformation Dynamics ◽  
Smoothed Particle ◽  
Asymmetric Shock

AbstractIn this work, the expansion dynamics of liquid tin micro-droplets irradiated by femtosecond laser pulses were investigated. The effects of laser pulse duration, energy, and polarization on ablation, cavitation, and spallation dynamics were studied using laser pulse durations ranging from 220 fs to 10 ps, with energies ranging from 1 to 5 mJ, for micro-droplets with an initial radius of 15 and 23 $$\upmu$$ μ m. Using linearly polarized laser pulses, cylindrically asymmetric shock waves were produced, leading to novel non-symmetric target shapes, the asymmetry of which was studied as a function of laser pulse parameters and droplet size. A good qualitative agreement was obtained between smoothed-particle hydrodynamics simulations and high-resolution stroboscopic experimental data of the droplet deformation dynamics.

Effect and mechanism of initial phase on electron radiation under linearly polarized Gaussian laser pulse

2021 ◽  
Author(s):  
Penghang Yu ◽  
Yiqiu Wang ◽  
Jin Yan ◽  
Jianping Chang ◽  
Youwei Tian
Keyword(s):  
Laser Pulse ◽  
Initial Phase ◽  
Electron Radiation ◽  
Linearly Polarized

Double ionization of hydrogen molecules in a high-intensity linearly polarized laser pulse

2021 ◽  
Vol 764 ◽  
pp. 138214
Author(s):  
Dan Wu ◽  
Qingyi Li ◽  
Jun Wang ◽  
Fuming Guo ◽  
Jigen Chen ◽  
...  
Keyword(s):  
Laser Pulse ◽  
High Intensity ◽  
Double Ionization ◽  
Hydrogen Molecules ◽  
Linearly Polarized

Plasma block acceleration based upon the interaction between double targets and an ultra-intense linearly polarized laser pulse

2018 ◽  
Vol 25 (4) ◽  
pp. 043102 ◽  
Author(s):  
Yanxia Xu ◽  
Jiaxiang Wang ◽  
Heinrich Hora ◽  
Xin Qi ◽  
Yifan Xing ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Linearly Polarized ◽  
Double Targets

scholarly journals Intense local plasma heating by stopping of ultrashort ultraintense laser pulse in dense plasma

2007 ◽  
Vol 25 (4) ◽  
pp. 631-638 ◽  
Author(s):  
W. Yu ◽  
M. Y. Yu ◽  
H. Xu ◽  
Y. W. Tian ◽  
J. Chen ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Plasma Oscillation ◽  
Plasma Heating ◽  
Critical Density ◽  
Deposition Process ◽  
Particle In Cell ◽  
Linearly Polarized ◽  
Plasma Slab ◽  
Cell Simulation ◽  
Channel Boundary

AbstractSelf-trapping, stopping, and absorption of an ultrashort ultraintense linearly polarized laser pulse in a finite plasma slab of near-critical density is investigated by particle-in-cell simulation. As in the underdense plasma, an electron cavity is created by the pressure of the transmitted part of the light pulse and it traps the latter. Since the background plasma is at near-critical density, no wake plasma oscillation is created. The propagating self-trapped light rapidly comes to a stop inside the slab. Subsequent ion Coulomb explosion of the stopped cavity leads to explosive expulsion of its ions and formation of an extended channel having extremely low plasma density. The energetic Coulomb-exploded ions form shock layers of high density and temperature at the channel boundary. In contrast to a propagating pulse in a lower density plasma, here the energy of the trapped light is deposited onto a stationary and highly localized region of the plasma. This highly localized energy-deposition process can be relevant to the fast ignition scheme of inertial fusion.

scholarly journals Spontaneous emergence of non-planar electron orbits during direct laser acceleration by a linearly polarized laser pulse

2016 ◽  
Vol 23 (2) ◽  
pp. 023111 ◽  
Author(s):  
A. V. Arefiev ◽  
V. N. Khudik ◽  
A. P. L. Robinson ◽  
G. Shvets ◽  
L. Willingale
Keyword(s):  
Laser Pulse ◽  
Direct Laser ◽  
Linearly Polarized ◽  
Laser Acceleration ◽  
Planar Electron

scholarly journals Динамика спинорной экситон-поляритонной системы в латерально сжатых GaAs микрорезонаторах при резонансном фотовозбуждении

2018 ◽  
Vol 60 (8) ◽  
pp. 1567
Author(s):  
А.А. Деменев ◽  
Н.А. Гиппиус ◽  
В.Д. Кулаковский
Keyword(s):  
Laser Pulse ◽  
Spatial Coherence ◽  
Picosecond Laser ◽  
Threshold Value ◽  
Laser Pulses ◽  
Josephson Effects ◽  
High Q ◽  
Wide Range ◽  
Linearly Polarized ◽  
Polariton Branch

AbstractThe evolution of the spatial coherence and the polarization has been studied in a freely decaying polariton condensate that is resonantly excited by linearly polarized picosecond laser pulses at the lower and upper sublevels of the lower polariton branch in a high-Q GaAs-based microcavity with a reduced lateral symmetry without excitation of the exciton reservoir. It is found that the condensate inherits the coherence of the exciting laser pulse at both sublevels in a wide range of excitation densities and retains it for several dozen picoseconds. The linear polarization of the photoexcited condensate is retained only in the condensate at the lower sublevel. The linearly polarized condensate excited at the upper sublevel loses its stability at the excitation densities higher a threshold value: it enters a regime of internal Josephson oscillations with strongly oscillating circular and diagonal linear degrees of polarization. The polariton–polariton interaction leads to the nonlinear Josephson effects at high condensate densities. All the effects are well described in terms of the spinor Gross–Pitaevskii equations. The cause of the polarization instability of the condensate is shown to be the spin anisotropy of the polariton–polariton interaction.

scholarly journals Search for sub-eV axion-like resonance states via stimulated quasi-parallel laser collisions with the parameterization including fully asymmetric collisional geometry

2021 ◽  
Vol 2021 (12) ◽  
Author(s):  
◽  
Kensuke Homma ◽  
Yuri Kirita ◽  
Masaki Hashida ◽  
Yusuke Hirahara ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser Field ◽  
Mass Range ◽  
Vacuum System ◽  
Mass Relation ◽  
Experimental Conditions ◽  
Resonance States ◽  
Scattering Rate ◽  
Linearly Polarized ◽  
Converted Signal

Abstract We have searched for axion-like resonance states by colliding optical photons in a focused laser field (creation beam) by adding another laser field (inducing beam) for stimulation of the resonance decays, where frequency-converted signal photons can be created as a result of stimulated photon-photon scattering via exchanges of axion-like resonances. A quasi-parallel collision system (QPS) in such a focused field allows access to the sub-eV mass range of resonance particles. In past searches in QPS, for simplicity, we interpreted the scattering rate based on an analytically calculable symmetric collision geometry in both incident angles and incident energies by partially implementing the asymmetric nature to meet the actual experimental conditions. In this paper, we present new search results based on a complete parameterization including fully asymmetric collisional geometries. In particular, we combined a linearly polarized creation laser and a circularly polarized inducing laser to match the new parameterization. A 0.10 mJ/31 fs Ti:sapphire laser pulse and a 0.20 mJ/9 ns Nd:YAG laser pulse were spatiotemporally synchronized by sharing a common optical axis and focused into the vacuum system. Under a condition in which atomic background processes were completely negligible, no significant scattering signal was observed at the vacuum pressure of 2.6 × 10−5 Pa, thereby providing upper bounds on the coupling-mass relation by assuming exchanges of scalar and pseudoscalar fields at a 95% confidence level in the sub-eV mass range.

Sign in / Sign up

Export Citation Format

Share Document