Ionization mechanisms in dielectrics irradiated by femtosecond laser pulses

V. V. Temnov; K. Sokolowski-Tinten; P. Zhou; B. Rethfeld; V. E. Gruzdev; A. El-Khamawy; D. Von Der Linde

doi:10.1117/12.547145

Ionization mechanisms in dielectrics irradiated by femtosecond laser pulses

V. V. Temnov
, K. Sokolowski-Tinten
, P. Zhou
, B. Rethfeld
, V. E. Gruzdev
, A. El-Khamawy
, D. Von Der Linde

University of Duisburg-Essen

Research output: Contribution to journal › Conference article › peer-review

Abstract

In order to investigate the ultrafast dynamics of free carriers generated in bulk dielectrics by intense femtosecond laser pulses we have designed a setup for ultrafast time-resolved imaging Mach-Zehnder interferometry. The application of the 2D-Fourier-transform technique allows us to accurately reconstruct the actual laser-induced phase shifts and transmission changes for the probe pulses, which provide the properties of free carriers. Interferometric measurements in high-purity fused silica clearly demonstrate that the dominant ionization mechanism for intensities below 10 TW/cm ² is multiphoton ionization.

Original language	English
Article number	164
Pages (from-to)	1119-1126
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5448
Issue number	PART 2
DOIs	https://doi.org/10.1117/12.547145
Publication status	Published - 1 Dec 2004
Externally published	Yes
Event	High-Power Laser Ablation V - Taos, NM, United States Duration: 25 Apr 2004 → 30 Apr 2004

Keywords

Fs-laser-induced ionization of dielectrics
Time-resolved interferometry

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10.1117/12.547145

Cite this

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title = "Ionization mechanisms in dielectrics irradiated by femtosecond laser pulses",

abstract = "In order to investigate the ultrafast dynamics of free carriers generated in bulk dielectrics by intense femtosecond laser pulses we have designed a setup for ultrafast time-resolved imaging Mach-Zehnder interferometry. The application of the 2D-Fourier-transform technique allows us to accurately reconstruct the actual laser-induced phase shifts and transmission changes for the probe pulses, which provide the properties of free carriers. Interferometric measurements in high-purity fused silica clearly demonstrate that the dominant ionization mechanism for intensities below 10 TW/cm 2 is multiphoton ionization.",

keywords = "Fs-laser-induced ionization of dielectrics, Time-resolved interferometry",

author = "Temnov, \{V. V.\} and K. Sokolowski-Tinten and P. Zhou and B. Rethfeld and Gruzdev, \{V. E.\} and A. El-Khamawy and \{Von Der Linde\}, D.",

year = "2004",

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doi = "10.1117/12.547145",

language = "English",

volume = "5448",

pages = "1119--1126",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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TY - JOUR

T1 - Ionization mechanisms in dielectrics irradiated by femtosecond laser pulses

AU - Temnov, V. V.

AU - Sokolowski-Tinten, K.

AU - Zhou, P.

AU - Rethfeld, B.

AU - Gruzdev, V. E.

AU - El-Khamawy, A.

AU - Von Der Linde, D.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - In order to investigate the ultrafast dynamics of free carriers generated in bulk dielectrics by intense femtosecond laser pulses we have designed a setup for ultrafast time-resolved imaging Mach-Zehnder interferometry. The application of the 2D-Fourier-transform technique allows us to accurately reconstruct the actual laser-induced phase shifts and transmission changes for the probe pulses, which provide the properties of free carriers. Interferometric measurements in high-purity fused silica clearly demonstrate that the dominant ionization mechanism for intensities below 10 TW/cm 2 is multiphoton ionization.

AB - In order to investigate the ultrafast dynamics of free carriers generated in bulk dielectrics by intense femtosecond laser pulses we have designed a setup for ultrafast time-resolved imaging Mach-Zehnder interferometry. The application of the 2D-Fourier-transform technique allows us to accurately reconstruct the actual laser-induced phase shifts and transmission changes for the probe pulses, which provide the properties of free carriers. Interferometric measurements in high-purity fused silica clearly demonstrate that the dominant ionization mechanism for intensities below 10 TW/cm 2 is multiphoton ionization.

KW - Fs-laser-induced ionization of dielectrics

KW - Time-resolved interferometry

UR - https://www.scopus.com/pages/publications/11844273902

U2 - 10.1117/12.547145

DO - 10.1117/12.547145

M3 - Conference article

AN - SCOPUS:11844273902

SN - 0277-786X

VL - 5448

SP - 1119

EP - 1126

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

IS - PART 2

M1 - 164

T2 - High-Power Laser Ablation V

Y2 - 25 April 2004 through 30 April 2004

ER -

Ionization mechanisms in dielectrics irradiated by femtosecond laser pulses

Abstract

Keywords

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