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Title: Counting the electrons in a multiphoton ionization by elastic scattering of microwaves

Abstract

Multiphoton ionization (MPI) is a fundamental first step in high-energy laser-matter interaction and is important for understanding the mechanism of plasma formation. With the discovery of MPI more than 50 years ago, there were numerous attempts to determine the basic physical constants of this process in direct experiments, namely photoionization rates and cross-sections of the MPI; however, no reliable data was available until now, and the spread in the literature values often reaches 2–3 orders of magnitude. This is due to the inability to conduct absolute measurements of plasma electron numbers generated by MPI, which leads to uncertainties and, sometimes, contradictions between MPI cross-section values utilized by different researchers across the field. Here, we report the first direct measurement of absolute plasma electron numbers generated at MPI of air, and subsequently we precisely determine the ionization rate and cross-section of eight-photon ionization of oxygen molecule by 800 nm photons σ8 = (3.3 ± 0.3)×10-130 W-8m16s-1. The method, based on the absolute measurement of the electron number created by MPI using elastic scattering of microwaves off the plasma volume in Rayleigh regime, establishes a general approach to directly measure and tabulate basic constants of the MPI process for various gases andmore » photon energies.« less

Authors:
 [1]; ORCiD logo [2];  [3];  [1];  [2];  [1]
  1. Purdue Univ., West Lafayette, IN (United States). School of Aeronautics and Astronautics
  2. Purdue Univ., West Lafayette, IN (United States). School of Mechanical Engineering
  3. Princeton Univ., NJ (United States). Dept. of Mechanical and Aerospace Engineering
Publication Date:
Research Org.:
Purdue Univ., West Lafayette, IN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); National Science Foundation (NSF)
OSTI Identifier:
1499979
Grant/Contract Number:  
SC0018156; 1465061
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; laser-produced plasmas; plasma physics

Citation Formats

Sharma, A., Slipchenko, M. N., Shneider, M. N., Wang, X., Rahman, K. A., and Shashurin, A. Counting the electrons in a multiphoton ionization by elastic scattering of microwaves. United States: N. p., 2018. Web. doi:10.1038/s41598-018-21234-y.
Sharma, A., Slipchenko, M. N., Shneider, M. N., Wang, X., Rahman, K. A., & Shashurin, A. Counting the electrons in a multiphoton ionization by elastic scattering of microwaves. United States. doi:10.1038/s41598-018-21234-y.
Sharma, A., Slipchenko, M. N., Shneider, M. N., Wang, X., Rahman, K. A., and Shashurin, A. Tue . "Counting the electrons in a multiphoton ionization by elastic scattering of microwaves". United States. doi:10.1038/s41598-018-21234-y. https://www.osti.gov/servlets/purl/1499979.
@article{osti_1499979,
title = {Counting the electrons in a multiphoton ionization by elastic scattering of microwaves},
author = {Sharma, A. and Slipchenko, M. N. and Shneider, M. N. and Wang, X. and Rahman, K. A. and Shashurin, A.},
abstractNote = {Multiphoton ionization (MPI) is a fundamental first step in high-energy laser-matter interaction and is important for understanding the mechanism of plasma formation. With the discovery of MPI more than 50 years ago, there were numerous attempts to determine the basic physical constants of this process in direct experiments, namely photoionization rates and cross-sections of the MPI; however, no reliable data was available until now, and the spread in the literature values often reaches 2–3 orders of magnitude. This is due to the inability to conduct absolute measurements of plasma electron numbers generated by MPI, which leads to uncertainties and, sometimes, contradictions between MPI cross-section values utilized by different researchers across the field. Here, we report the first direct measurement of absolute plasma electron numbers generated at MPI of air, and subsequently we precisely determine the ionization rate and cross-section of eight-photon ionization of oxygen molecule by 800 nm photons σ8 = (3.3 ± 0.3)×10-130 W-8m16s-1. The method, based on the absolute measurement of the electron number created by MPI using elastic scattering of microwaves off the plasma volume in Rayleigh regime, establishes a general approach to directly measure and tabulate basic constants of the MPI process for various gases and photon energies.},
doi = {10.1038/s41598-018-21234-y},
journal = {Scientific Reports},
number = ,
volume = 8,
place = {United States},
year = {2018},
month = {2}
}

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Cited by: 6 works
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Figures / Tables:

Figure 1. Figure 1.: Experimental setup and RMS homodyne system. A 800 nm Ti:Sapphire femtosecond laser operating at a repetition rate of 100 Hz was focused using a 1000 mm plano-convex lens to create the plasma. A homodyne-type Rayleigh Microwave Scattering system calibrated against dielectric scatterers was used to measure the absolutemore » number of electrons in the plasma volume.« less

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Works referenced in this record:

Laser Electron Accelerator
journal, July 1979


Principles and applications of compact laser–plasma accelerators
journal, June 2008

  • Malka, Victor; Faure, Jérôme; Gauduel, Yann A.
  • Nature Physics, Vol. 4, Issue 6
  • DOI: 10.1038/nphys966

Conductivity Measurements of Femtosecond Laser–Plasma Filaments
journal, October 2007

  • Fischer, Richard P.; Ting, Antonio C.; Gordon, Daniel F.
  • IEEE Transactions on Plasma Science, Vol. 35, Issue 5
  • DOI: 10.1109/TPS.2007.901951

A Generalization of the Dielectric Ellipsoid Problem
journal, August 1945


Femtosecond laser guiding of a high-voltage discharge and the restoration of dielectric strength in air and nitrogen
journal, December 2012

  • Leonov, S. B.; Firsov, A. A.; Shurupov, M. A.
  • Physics of Plasmas, Vol. 19, Issue 12
  • DOI: 10.1063/1.4769261

Effect of power losses on self-focusing of high-intensity laser beam in gases
journal, April 2013


Effect of quantum interference on tunneling photoionization rates of N2 and O2 molecules
journal, March 2005

  • Mishima, K.; Nagaya, K.; Hayashi, M.
  • The Journal of Chemical Physics, Vol. 122, Issue 10
  • DOI: 10.1063/1.1859275

Femtosecond filamentation in transparent media
journal, March 2007


Microwave diagnostics of small plasma objects
journal, August 2005

  • Shneider, M. N.; Miles, R. B.
  • Journal of Applied Physics, Vol. 98, Issue 3
  • DOI: 10.1063/1.1996835

Ultrashort filaments of light in weakly ionized, optically transparent media
journal, September 2007


Tailoring the air plasma with a double laser pulse
journal, June 2011

  • Shneider, M. N.; Zheltikov, A. M.; Miles, R. B.
  • Physics of Plasmas, Vol. 18, Issue 6
  • DOI: 10.1063/1.3601764

High-order harmonic generation in rare gases with a 1-ps 1053-nm laser
journal, February 1993


Electromagnetic beam propagation in nonlinear media
journal, January 2015

  • Semak, V. V.; Shneider, M. N.
  • High Power Laser Science and Engineering, Vol. 3
  • DOI: 10.1017/hpl.2015.3

High intensity laser mass spectrometry — a review
journal, May 1997

  • Ledingham, K. W. D.; Singhal, R. P.
  • International Journal of Mass Spectrometry and Ion Processes, Vol. 163, Issue 3
  • DOI: 10.1016/S0168-1176(97)00015-3

Semi-empirical model for the rate of tunnel ionization of N2 and O2 molecule in an intense Ti:sapphire laser pulse
journal, May 1999


Dissociative ionization of NO in an intense laser field: a route towards enhanced ionization
journal, April 1997

  • Talebpour, A.; Larochelle, S.; Chin, S. L.
  • Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 30, Issue 8
  • DOI: 10.1088/0953-4075/30/8/010

Triggering and guiding electric discharge by a train of ultraviolet picosecond pulses combined with a long ultraviolet pulse
journal, March 2012

  • Ionin, A. A.; Kudryashov, S. I.; Levchenko, A. O.
  • Applied Physics Letters, Vol. 100, Issue 10
  • DOI: 10.1063/1.3691918

Plasma filament investigation by transverse optical interferometry and terahertz scattering
journal, January 2011

  • Bodrov, Sergey; Bukin, Vladimir; Tsarev, Maxim
  • Optics Express, Vol. 19, Issue 7
  • DOI: 10.1364/OE.19.006829

Conductivity and discharge guiding properties of mid-IR laser filaments
journal, October 2016


Non-equilibrium plasma produced by intense pulse lasers and relative diagnostics
journal, November 2013


Tunnel and multiphoton ionization of atoms and ions in a strong laser field (Keldysh theory)
journal, September 2004


Electric discharge during electrosurgery
journal, April 2015

  • Shashurin, Alexey; Scott, David; Zhuang, Taisen
  • Scientific Reports, Vol. 5, Issue 1
  • DOI: 10.1038/srep09946

Femtosecond laser electronic excitation tagging for quantitative velocity imaging in air
journal, January 2011

  • Michael, James B.; Edwards, Matthew R.; Dogariu, Arthur
  • Applied Optics, Vol. 50, Issue 26
  • DOI: 10.1364/AO.50.005158

High-order harmonic generation using intense femtosecond pulses
journal, February 1993


Experimental and theoretical analysis of resonant multiphoton ionization of benzene
journal, January 1985

  • Armenante, M.; Bruzzese, R.; Passarelli, A.
  • Journal of the Optical Society of America B, Vol. 2, Issue 7
  • DOI: 10.1364/JOSAB.2.001088

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