Self-focusing of a spatially modulated beam within the paraxial complex geometrical optics framework in low-density plasmas

2021 ◽  
Author(s):  
Alessandro Ruocco ◽  
Guillaume Duchateau ◽  
Vladimir T Tikhonchuk
Keyword(s):  
Geometrical Optics ◽  
Low Density ◽  
Self Focusing

Diffraction, self-focusing, and the geometrical optics limit in laser produced plasmas

1987 ◽  
Vol 30 (5) ◽  
pp. 1521 ◽  
Author(s):  
R. Marchand ◽  
R. Rankin ◽  
C. E. Capjack ◽  
A. Birnboim
Keyword(s):  
Geometrical Optics ◽  
Self Focusing

Sub-50-fs laser retinal damage thresholds in primate eyes with group velocity dispersion, self-focusing and low-density plasmas

2004 ◽  
Vol 243 (2) ◽  
pp. 101-112 ◽  
Author(s):  
Clarence P. Cain ◽  
Robert J. Thomas ◽  
Gary D. Noojin ◽  
David J. Stolarski ◽  
Paul K. Kennedy ◽  
...  
Keyword(s):  
Group Velocity ◽  
Velocity Dispersion ◽  
Group Velocity Dispersion ◽  
Low Density ◽  
Retinal Damage ◽  
Self Focusing ◽  
Fs Laser

scholarly journals Modeling of laser ponderomotive self-focusing in plasma within the paraxial complex geometrical optics approach

2019 ◽  
Vol 61 (11) ◽  
pp. 115009
Author(s):  
A Ruocco ◽  
G Duchateau ◽  
V T Tikhonchuk ◽  
S Hüller
Keyword(s):  
Geometrical Optics ◽  
Self Focusing

Macroscopic self-focusing effects in a laser-produced low-density plasma

1984 ◽  
Vol 82 (1) ◽  
pp. 111-124 ◽  
Author(s):  
M. Lucchesi ◽  
F. Cornolti ◽  
A. Giulietti ◽  
D. Giulietti ◽  
M. Vaselli
Keyword(s):  
Low Density ◽  
Self Focusing ◽  
Low Density Plasma ◽  
Density Plasma

Application of Improved Voltage Compensation in the SEM to Imaging of Organic Materials

1973 ◽  
Vol 31 ◽  
pp. 444-445
Author(s):  
P.J. Killingworth ◽  
M. Warren
Keyword(s):  
Electron Beam ◽  
Organic Materials ◽  
Operating Parameters ◽  
Low Density ◽  
Beam Diameter ◽  
Incident Electron Beam ◽  
Specimen Material ◽  
Voltage Compensation ◽  
Selection Of ◽  
Scanning Electron

Ultimate resolution in the scanning electron microscope is determined not only by the diameter of the incident electron beam, but by interaction of that beam with the specimen material. Generally, while minimum beam diameter diminishes with increasing voltage, due to the reduced effect of aberration component and magnetic interference, the excited volume within the sample increases with electron energy. Thus, for any given material and imaging signal, there is an optimum volt age to achieve best resolution.In the case of organic materials, which are in general of low density and electric ally non-conducting; and may in addition be susceptible to radiation and heat damage, the selection of correct operating parameters is extremely critical and is achiev ed by interative adjustment.

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