NDLI: Transmission of Intense Femtosecond Laser Pulses into Dielectrics

Content Provider	IEEE Xplore Digital Library
Author	Penano, J. Sprangle, P. Hafizi, B. Manheimer, W. Zigler, A.
Copyright Year	2005
Description	Author affiliation: Div. of Plasma Phys., Naval Res. Lab., Washington, DC (Penano, J.; Sprangle, P.)
Abstract	Summary form only given. The interaction of intense, femtosecond laser pulses with a dielectric surface is examined using a numerical simulation. The simulation uses the 1D electromagnetic wave equation to model laser pulse propagation. In addition, it includes multi-photon ionization, electron attachment, ohmic heating of free electrons, and temperature dependent collisional ionization. Laser pulses considered in this study are characterized by peak intensities $~10^{12}-10^{14}$ $W/cm^{2}$ and pulse durations ~10-100 fsec. These laser pulses interacting with fused silica are shown to produce above-critical plasma densities and electron energy densities above experimentally measured damage thresholds. Significant transmission of laser energy is observed even in cases where the peak plasma density is above the critical density for reflection. A damage fluence based on absorbed laser energy is calculated for various pulse durations. The calculated damage fluence is found to be consistent with recent experimental results
Sponsorship	Plasma Sci. Appl. Comm. IEEE Nucl. Plasma Sci. Soc.
Starting Page	171
Ending Page	171
File Size	668232
Page Count	1
File Format	PDF
ISBN	0780393007
ISSN	07309244
DOI	10.1109/PLASMA.2005.359180
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical pulses Dielectrics Free electron lasers Laser modes Ionization Pulse measurements Plasma density Surface emitting lasers Numerical simulation Electromagnetic scattering
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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