scholarly journals Optical field ionization of atoms and ions using ultrashort laser pulses

1993 ◽  
Author(s):  
David Neal Fittinghoff
Keyword(s):  
Laser Pulses ◽  
Optical Field ◽  
Ultrashort Laser Pulses ◽  
Field Ionization ◽  
Ultrashort Laser

Strong field ionization by ultrashort laser pulses: Application of the Keldysh theory

2009 ◽  
Vol 374 (2) ◽  
pp. 386-390 ◽  
Author(s):  
B.M. Karnakov ◽  
V.D. Mur ◽  
S.V. Popruzhenko ◽  
V.S. Popov
Keyword(s):  
Strong Field ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Field Ionization ◽  
Strong Field Ionization ◽  
Ultrashort Laser

scholarly journals Heteronuclear Limit of Strong-Field Ionization: Fragmentation of HeH+ by Intense Ultrashort Laser Pulses

2018 ◽  
Vol 121 (7) ◽  
Author(s):  
Philipp Wustelt ◽  
Florian Oppermann ◽  
Lun Yue ◽  
Max Möller ◽  
Thomas Stöhlker ◽  
...  
Keyword(s):  
Strong Field ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Field Ionization ◽  
Strong Field Ionization ◽  
Ultrashort Laser

scholarly journals Ultrafast optical field–ionized gases—A laboratory platform for studying kinetic plasma instabilities

2019 ◽  
Vol 5 (9) ◽  
pp. eaax4545 ◽  
Author(s):  
Chaojie Zhang ◽  
Chen-Kang Huang ◽  
Ken A. Marsh ◽  
Chris E. Clayton ◽  
Warren B. Mori ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Thomson Scattering ◽  
Optical Field ◽  
Ultrashort Laser Pulses ◽  
Electron Velocity ◽  
Probe Laser ◽  
Ultrafast Optical ◽  
Electron Distributions ◽  
Ultrashort Laser ◽  
Kinetic Instabilities

Kinetic instabilities arising from anisotropic electron velocity distributions are ubiquitous in ionospheric, cosmic, and terrestrial plasmas, yet there are only a handful of experiments that purport to validate their theory. It is known that optical field ionization of atoms using ultrashort laser pulses can generate plasmas with known anisotropic electron velocity distributions. Here, we show that following the ionization but before collisions thermalize the electrons, the plasma undergoes two-stream, filamentation, and Weibel instabilities that isotropize the electron distributions. The polarization-dependent frequency and growth rates of these kinetic instabilities, measured using Thomson scattering of a probe laser, agree well with the kinetic theory and simulations. Thus, we have demonstrated an easily deployable laboratory platform for studying kinetic instabilities in plasmas.

Welding characteristics of foturan glass using ultrashort laser pulses

2012 ◽  
Author(s):  
Isamu Miyamoto ◽  
Kristian Cvecek ◽  
Yasuhiro Okamoto ◽  
Michael Schmidt ◽  
Henry Helvajian
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Ultrashort Laser

Evaluation of Chip-Breakers Manufactured by Ultrashort Laser Pulses in Cemented Carbide Tools

2017 ◽  
Author(s):  
Marcelo Bertolete Carneiro ◽  
Patrícia Alves Barbosa ◽  
Ricardo Samad ◽  
NIlson Vieira ◽  
Wagner de Rossi ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Cemented Carbide ◽  
Cemented Carbide Tools ◽  
Ultrashort Laser

Picosecond Single-Photon and Femtosecond Two-Photon Pulsed Laser Stimulation for IC Characterization and Failure Analysis

2009 ◽  
Author(s):  
V. Pouget ◽  
E. Faraud ◽  
K. Shao ◽  
S. Jonathas ◽  
D. Horain ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Single Photon ◽  
Pulsed Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Laser Stimulation ◽  
Two Photon ◽  
Resolution Improvement ◽  
Ultrashort Laser

Abstract This paper presents the use of pulsed laser stimulation with picosecond and femtosecond laser pulses. We first discuss the resolution improvement that can be expected when using ultrashort laser pulses. Two case studies are then presented to illustrate the possibilities of the pulsed laser photoelectric stimulation in picosecond single-photon and femtosecond two-photon modes.

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