Compact Energy Measuring System for Short Pulse Lasers

2013 ◽  
Vol 20 (2) ◽  
pp. 183-190 ◽  
Author(s):  
A. Barna ◽  
I. B. Földes ◽  
Z. Gingl ◽  
R. Mingesz
Keyword(s):  
Short Pulse ◽  
Electronic Devices ◽  
Laser Pulses ◽  
Measuring System ◽  
Electric Response ◽  
Usb Interface ◽  
Radiated Noise ◽  
Fiber Optical ◽  
Measurement Control ◽  
Short Pulse Lasers

Abstract In experiments with short-pulse lasers the measurement control of the energy of the laser pulse is of crucial importance. Generally it is difficult to measure the amplitude of the pulses of short-pulse lasers using electronic devices, their response time being longer than the duration of the laser pulses. The electric response of the detector is still too fast to be directly digitized therefore a peak-hold unit can be used to allow data processing for the computer. In this paper we present a device which measures the energy of UV short (fs) pulses shot-byshot, digitizes and sends the data to the PC across an USB interface. The circuit is based on an analog peak detect and hold unit and the use of fiber optical coupling between the PC and the device provides a significant improvement to eliminate potential ground loops and to reduce conductive and radiated noise as well. The full development is open source and has been made available to download from our web page (http://www.noise.inf.u-szeged.hu/Instruments/PeakHold/).

Optical diagnostics of laser-produced plasmas with ultra-short laser pulses

1980 ◽  
Vol 298 (1439) ◽  
pp. 407-414 ◽  
Keyword(s):  
Short Pulse ◽  
Laser Pulses ◽  
Laser Fusion ◽  
Light Pressure ◽  
Laser Plasma Interaction ◽  
Short Laser Pulses ◽  
Short Pulse Lasers ◽  
Pellet Density ◽  
Laser Heated ◽  
Interaction Problem

In laser fusion experiments the interesting phenomena occur on a picosecond timescale. Short-pulse lasers in combination with high resolution optics offer a powerful diagnostic tool. After a short description of the principles and experimental techniques I discuss three specific areas of the laser-plasma interaction problem, namely heat transport in the corona of a laser heated pellet, density profile steepening by light pressure and the generation of magnetic fields.

scholarly journals Plasma channeling by multiple short-pulse lasers

2009 ◽  
Vol 27 (1) ◽  
pp. 109-114 ◽  
Author(s):  
W. Yu ◽  
L. Cao ◽  
M.Y. Yu ◽  
H. Cai ◽  
H. Xu ◽  
...  
Keyword(s):  
Ponderomotive Force ◽  
Laser Energy ◽  
Short Pulse ◽  
Laser Pulses ◽  
Particle In Cell ◽  
Peak Intensity ◽  
Cell Simulation ◽  
Short Pulse Lasers ◽  
Long Pulse ◽  
Similar Peak

AbstractChanneling by a train of laser pulses into homogeneous and inhomogeneous plasmas is studied using particle-in-cell simulation. When the pulse duration and the interval between the successive pulses are appropriate, the laser pulse train can channel into the plasma deeper than a single long-pulse laser of similar peak intensity and total energy. The increased penetration distance can be attributed to the repeated actions of the ponderomotive force, the continuous between-pulse channel lengthening by the inertially evacuating ions, and the suppression of laser-driven plasma instabilities by the intermittent laser-energy cut-offs.

scholarly journals Short-pulse laser-driven x-ray radiography

2016 ◽  
Vol 4 ◽  
Author(s):  
E. Brambrink ◽  
S. Baton ◽  
M. Koenig ◽  
R. Yurchak ◽  
N. Bidaut ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Short Pulse ◽  
Incident Angle ◽  
Laboratory Astrophysics ◽  
Signal To Noise ◽  
High Quality ◽  
X Ray ◽  
Short Pulse Laser ◽  
Short Pulse Lasers

We have developed a new radiography setup with a short-pulse laser-driven x-ray source. Using a radiography axis perpendicular to both long- and short-pulse lasers allowed optimizing the incident angle of the short-pulse laser on the x-ray source target. The setup has been tested with various x-ray source target materials and different laser wavelengths. Signal to noise ratios are presented as well as achieved spatial resolutions. The high quality of our technique is illustrated on a plasma flow radiograph obtained during a laboratory astrophysics experiment on POLARs.

Efficient generation of fast ions from surface modulated nanostructure targets irradiated by high intensity short-pulse lasers

2011 ◽  
Vol 18 (10) ◽  
pp. 103103 ◽  
Author(s):  
Alexander Andreev ◽  
Naveen Kumar ◽  
Konstantin Platonov ◽  
Alexander Pukhov
Keyword(s):  
High Intensity ◽  
Short Pulse ◽  
Fast Ions ◽  
Efficient Generation ◽  
Short Pulse Lasers

scholarly journals Transport in dense matter of relativistic electrons produced in ultra-high-intensity laser interactions

2002 ◽  
Vol 20 (2) ◽  
pp. 321-336 ◽  
Author(s):  
DIMITRI BATANI
Keyword(s):  
High Intensity ◽  
Short Pulse ◽  
Dense Matter ◽  
Laser Pulses ◽  
Relativistic Electrons ◽  
Fast Electrons ◽  
Solid Density ◽  
High Intensity Laser ◽  
Intensity Laser ◽  
Laser Interactions

The paper reviews and analyses the experiments devoted to the propagation in dense matter of fast electrons produced in the interaction of short-pulse ultra-high-intensity laser pulses with solid density targets.

Fast focusing of short-pulse lasers by innovative plasma optics toward extreme intensity

2010 ◽  
Vol 35 (13) ◽  
pp. 2314 ◽  
Author(s):  
M. Nakatsutsumi ◽  
A. Kon ◽  
S. Buffechoux ◽  
P. Audebert ◽  
J. Fuchs ◽  
...  
Keyword(s):  
Short Pulse ◽  
Short Pulse Lasers
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