Multiphoton ionization in dielectrics: Comparison of circular and linear polarization

V. V. Temnov; K. Sokolowski-Tinten; P. Zhou; A. El-Khamhawy; D. Von Der Linde

doi:10.1103/PhysRevLett.97.237403

Multiphoton ionization in dielectrics: Comparison of circular and linear polarization

V. V. Temnov
, K. Sokolowski-Tinten
, P. Zhou
, A. El-Khamhawy
, D. Von Der Linde

University of Duisburg-Essen
University of Dortmund

Research output: Contribution to journal › Article › peer-review

Abstract

Ionization mechanisms in bulk dielectrics irradiated by single intense 50-fs-laser pulses are investigated by ultrafast time-resolved imaging interferometry. Polarization-sensitive 6-photon ionization is shown to be the dominant ionization mechanism in fused silica and sapphire at intensities around 10TW/cm2. For both materials the cross sections of 6-photon ionization are found to be significantly higher for linear polarization than for circular. Our experimental results corroborate an earlier theoretical prediction on the dominance of linear polarization in high-order multiphoton ionization.

Original language	English
Article number	237403
Journal	Physical Review Letters
Volume	97
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.97.237403
Publication status	Published - 1 Jan 2006
Externally published	Yes

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10.1103/PhysRevLett.97.237403

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abstract = "Ionization mechanisms in bulk dielectrics irradiated by single intense 50-fs-laser pulses are investigated by ultrafast time-resolved imaging interferometry. Polarization-sensitive 6-photon ionization is shown to be the dominant ionization mechanism in fused silica and sapphire at intensities around 10TW/cm2. For both materials the cross sections of 6-photon ionization are found to be significantly higher for linear polarization than for circular. Our experimental results corroborate an earlier theoretical prediction on the dominance of linear polarization in high-order multiphoton ionization.",

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T2 - Comparison of circular and linear polarization

AU - Temnov, V. V.

AU - Sokolowski-Tinten, K.

AU - Zhou, P.

AU - El-Khamhawy, A.

AU - Von Der Linde, D.

PY - 2006/1/1

Y1 - 2006/1/1

N2 - Ionization mechanisms in bulk dielectrics irradiated by single intense 50-fs-laser pulses are investigated by ultrafast time-resolved imaging interferometry. Polarization-sensitive 6-photon ionization is shown to be the dominant ionization mechanism in fused silica and sapphire at intensities around 10TW/cm2. For both materials the cross sections of 6-photon ionization are found to be significantly higher for linear polarization than for circular. Our experimental results corroborate an earlier theoretical prediction on the dominance of linear polarization in high-order multiphoton ionization.

AB - Ionization mechanisms in bulk dielectrics irradiated by single intense 50-fs-laser pulses are investigated by ultrafast time-resolved imaging interferometry. Polarization-sensitive 6-photon ionization is shown to be the dominant ionization mechanism in fused silica and sapphire at intensities around 10TW/cm2. For both materials the cross sections of 6-photon ionization are found to be significantly higher for linear polarization than for circular. Our experimental results corroborate an earlier theoretical prediction on the dominance of linear polarization in high-order multiphoton ionization.

UR - https://www.scopus.com/pages/publications/33845350995

U2 - 10.1103/PhysRevLett.97.237403

DO - 10.1103/PhysRevLett.97.237403

M3 - Article

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SN - 0031-9007

VL - 97

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

M1 - 237403

ER -

Multiphoton ionization in dielectrics: Comparison of circular and linear polarization

Abstract

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