scholarly journals Sustained Acceleration of Over-dense Plasmas by Colliding Laser Pulses

2006 ◽  
Author(s):  
Edison Liang
Keyword(s):  
Laser Pulses ◽  
Dense Plasmas

Relativistic laser piston model: Ponderomotive ion acceleration in dense plasmas using ultraintense laser pulses

2009 ◽  
Vol 16 (8) ◽  
pp. 083103 ◽  
Author(s):  
T. Schlegel ◽  
N. Naumova ◽  
V. T. Tikhonchuk ◽  
C. Labaune ◽  
I. V. Sokolov ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Ion Acceleration ◽  
Dense Plasmas

Scattering of ultrashort laser pulses on “ion-sphere” in dense plasmas

2018 ◽  
Vol 59 (2) ◽  
pp. 189-196 ◽  
Author(s):  
F.B. Rosmej ◽  
V.A. Astapenko ◽  
V.S. Lisitsa ◽  
Xiangdong Li ◽  
E.S. Khramov
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Dense Plasmas ◽  
Ultrashort Laser

Phase Modulation of Intense Ultrashort Laser Pulses Reflected From Steep, Dense Plasmas

2001 ◽  
Vol 86 (5) ◽  
pp. 810-813 ◽  
Author(s):  
R. J. Kingham ◽  
P. Gibbon ◽  
W. Theobald ◽  
L. Veisz ◽  
R. Sauerbrey
Keyword(s):  
Phase Modulation ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Dense Plasmas ◽  
Ultrashort Laser

scholarly journals Extreme ultraviolet emission from dense plasmas generated with sub-10-fs laser pulses

2008 ◽  
Vol 15 (10) ◽  
pp. 103301 ◽  
Author(s):  
J. Osterholz ◽  
F. Brandl ◽  
M. Cerchez ◽  
T. Fischer ◽  
D. Hemmers ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
Laser Pulses ◽  
Ultraviolet Emission ◽  
Dense Plasmas ◽  
Fs Laser

X-ray spectra from highly ionized dense plasmas produced by ultrashort laser pulses

1996 ◽  
Vol 62 (3) ◽  
pp. 213-220 ◽  
Author(s):  
U. Teubner ◽  
T. Missalla ◽  
I. Uschmann ◽  
E. F�rster ◽  
W. Theobald ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
X Ray ◽  
Dense Plasmas ◽  
Ultrashort Laser

Production of Dense Plasmas with sub-10-fs Laser Pulses

2006 ◽  
Vol 96 (8) ◽  
Author(s):  
J. Osterholz ◽  
F. Brandl ◽  
T. Fischer ◽  
D. Hemmers ◽  
M. Cerchez ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Dense Plasmas ◽  
Fs Laser

scholarly journals State of the development of X-ray lasers and applications at LSAI

2002 ◽  
Vol 20 (1) ◽  
pp. 23-30 ◽  
Author(s):  
D. ROS ◽  
G. JAMELOT ◽  
A. CARILLON ◽  
P. JAEGLÉ ◽  
A. KLISNICK ◽  
...  
Keyword(s):  
High Resolution ◽  
Laser Emission ◽  
Surface Defects ◽  
Laser Pulses ◽  
Collisional Excitation ◽  
Electrical Fields ◽  
X Ray ◽  
Dense Plasmas ◽  
Ir Laser

Obtaining an X-ray laser emission from plasmas, created and driven by an intense IR laser, has been pursued at the Laboratoire de Spectroscopie Atomique et Ionique (LSAI) for several years. At present, we operate various types of X-ray lasers driven by IR laser pulses of different durations (600 ps, 100 ps, and 600 ps/1 ps). A review of different techniques used at the LSAI to produce a strongly amplified emission using the collisional excitation pumping is presented. In the second part of this paper, to illustrate the potential of the X-ray lasers for applications, we present the main results obtained with an X-ray laser emitting at 21.2 nm in a study of surface defects of a niobium cathode, induced by strong electrical fields. We also describe a novel imaging interferometry device using an X-ray laser as a source and designed as a tool for high-resolution diagnostic of dense plasmas.

Emission Of Lithiumlike Transitions From Dense Plasmas Created By Picosecond KrF Laser Pulses

1988 ◽  
Author(s):  
J F. Seely ◽  
U Feldman ◽  
C H. Nam ◽  
W Tighe ◽  
S Suckewer ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Dense Plasmas ◽  
Krf Laser

scholarly journals Preferential enhancement of laser-driven carbon ion acceleration from optimized nanostructured surfaces

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Malay Dalui ◽  
W.-M. Wang ◽  
T. Madhu Trivikram ◽  
Subhrangsu Sarkar ◽  
Sheroy Tata ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Ion Acceleration ◽  
Maximum Acceleration ◽  
Carbon Ion ◽  
Nanostructured Surfaces ◽  
Particle In Cell ◽  
Dense Plasmas ◽  
Copper Target ◽  
Sputter Deposited

Abstract High-intensity ultrashort laser pulses focused on metal targets readily generate hot dense plasmas which accelerate ions efficiently and can pave way to compact table-top accelerators. Laser-driven ion acceleration studies predominantly focus on protons, which experience the maximum acceleration owing to their highest charge-to-mass ratio. The possibility of tailoring such schemes for the preferential acceleration of a particular ion species is very much desired but has hardly been explored. Here, we present an experimental demonstration of how the nanostructuring of a copper target can be optimized for enhanced carbon ion acceleration over protons or Cu-ions. Specifically, a thin (≈0.25 μm) layer of 25–30 nm diameter Cu nanoparticles, sputter-deposited on a polished Cu-substrate, enhances the carbon ion energy by about 10-fold at a laser intensity of 1.2×1018  W/cm2. However, particles smaller than 20 nm have an adverse effect on the ion acceleration. Particle-in-cell simulations provide definite pointers regarding the size of nanoparticles necessary for maximizing the ion acceleration. The inherent contrast of the laser pulse is found to play an important role in the species selective ion acceleration.

scholarly journals Fokker–Planck simulations of interactions of femtosecond laser pulses with dense plasmas

1994 ◽  
Vol 12 (1) ◽  
pp. 101-110 ◽  
Author(s):  
J. Limpouch ◽  
L. Drska ◽  
R. Liska
Keyword(s):  
Femtosecond Laser ◽  
Skin Effect ◽  
Normal Skin ◽  
Electron Distribution Function ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
State Density ◽  
Dense Plasmas ◽  
Basic Characteristics ◽  
Normal Skin Effect

The interaction of femtosecond laser pulses with solid-state density plasmas in regime of normal skin effect is investigated by means of numerical simulation. For short-wavelength lasers and laser pulses with length ≲ 120 fs full width at half maximum, the regime of normal skin effect is shown to hold for peak intensities up to 1017 W/cm2. The basic characteristics of the interaction are revealed and certain departures from simplistic models in electron distribution function, in plasma dielectric constant, and in laser absorption are pointed out. Comparison with the published experimental results is made.

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