Hot-electron generation and transport in high-intensity laser interaction

1986 ◽  
Vol 64 (8) ◽  
pp. 920-931 ◽  
Author(s):  
N. H. Burnett ◽  
G. D. Enright
Keyword(s):  
High Intensity ◽  
Inertial Confinement Fusion ◽  
National Research Council ◽  
Hot Electrons ◽  
Inertial Confinement ◽  
Hot Electron ◽  
Laser Interaction ◽  
Laser Target ◽  
High Intensity Laser ◽  
Intensity Laser

Experience has shown that at sufficiently high intensity, laser–target interaction is dominated by long mean-free-path electrons generated by resonance absorption. Experimental observations relating to the generation and target coupling of these hot electrons are reviewed with particular emphasis on results obtained in CO2 laser interaction experiments at the National Research Council of Canada. Possible applications of laser-generated hot electrons as a direct driver for inertial-confinement fusion are discussed.

Optical probing of high intensity laser interaction with micron-sized cryogenic hydrogen jets

2018 ◽  
Vol 60 (7) ◽  
pp. 074003 ◽  
Author(s):  
Tim Ziegler ◽  
Martin Rehwald ◽  
Lieselotte Obst ◽  
Constantin Bernert ◽  
Florian-Emanuel Brack ◽  
...  
Keyword(s):  
High Intensity ◽  
Laser Interaction ◽  
High Intensity Laser ◽  
Optical Probing ◽  
Intensity Laser

scholarly journals High-Intensity Laser-Driven Oxygen Source from CW Laser-Heated Titanium Tape Targets

Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 837
Author(s):  
Kotaro Kondo ◽  
Mamiko Nishiuchi ◽  
Hironao Sakaki ◽  
Nicholas P. Dover ◽  
Hazel F. Lowe ◽  
...  
Keyword(s):  
High Intensity ◽  
Target Surface ◽  
Laser Pulses ◽  
Heavy Ion ◽  
Ion Source ◽  
Laser Target ◽  
Cw Laser ◽  
High Intensity Laser ◽  
Laser Heated ◽  
Intensity Laser

The interaction of high-intensity laser pulses with solid targets can be used as a highly charged, energetic heavy ion source. Normally, intrinsic contaminants on the target surface suppress the performance of heavy ion acceleration from a high-intensity laser–target interaction, resulting in preferential proton acceleration. Here, we demonstrate that CW laser heating of 5 µm titanium tape targets can remove contaminant hydrocarbons in order to expose a thin oxide layer on the metal surface, ideal for the generation of energetic oxygen beams. This is demonstrated by irradiating the heated targets with a PW class high-power laser at an intensity of 5 × 1021 W/cm2, showing enhanced acceleration of oxygen ions with a non-thermal-like distribution. Our new scheme using a CW laser-heated Ti tape target is promising for use as a moderate repetition energetic oxygen ion source for future applications.

scholarly journals Enhancement of monoenergetic proton beamsviacone substrate in high intensity laser pulse-double layer target interactions

2010 ◽  
Vol 28 (4) ◽  
pp. 585-590 ◽  
Author(s):  
Weimin Zhou ◽  
Yuqiu Gu ◽  
Wei Hong ◽  
Leifeng Cao ◽  
Zongqing Zhao ◽  
...  
Keyword(s):  
Double Layer ◽  
High Intensity ◽  
Laser Light ◽  
Surface Current ◽  
Hot Electrons ◽  
Two Dimensional ◽  
Particle In Cell ◽  
Laser Plasma Interactions ◽  
High Intensity Laser ◽  
Intensity Laser

AbstractA scheme capable of enhancing the energy of monoenergetic protons in high intensity laser-plasma interactions is proposed and demonstrated by two dimensional particle-in-cell simulations. The focusing of laser light pulse and the guiding of surface currentviathe highZmaterial cone-shaped substrate increase the temperature of hot electrons, which are responsible for the electrostatic field accelerating protons. Moreover, the sub-micron proton layer coated on the cone-shaped substrate makes the total proton beam experience the same accelerating field, thus the monochromaticity is maintained. Compared to the normal film double layer target, the energy of monoenergetic proton beams can be improved about three times.

scholarly journals An in-vacuo optical levitation trap for high-intensity laser interaction experiments with isolated microtargets

2015 ◽  
Vol 86 (3) ◽  
pp. 033502 ◽  
Author(s):  
C. J. Price ◽  
T. D. Donnelly ◽  
S. Giltrap ◽  
N. H. Stuart ◽  
S. Parker ◽  
...  
Keyword(s):  
High Intensity ◽  
Laser Interaction ◽  
High Intensity Laser ◽  
Optical Levitation ◽  
Intensity Laser
Sign in / Sign up

Export Citation Format

Share Document