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Pair and γ-photon production from a thin foil confined by two laser pulses

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons60844

Shen,  Baifei F.
Theory, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60703

Meyer-ter-Vehn,  Jürgen
Laboratory for Attosecond Physics, Max Planck Institute of Quantum Optics, Max Planck Society;
Laser Plasma Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

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Shen, B. F., & Meyer-ter-Vehn, J. (2002). Pair and γ-photon production from a thin foil confined by two laser pulses. Physical Review E, 65(1): 016405. 016405. Retrieved from http://link.aps.org/abstract/PRE/v65/e016405.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-C273-7
Abstract
Electron-positron and γ-photon production by high-intensity laser pulses is investigated for a special target geometry, in which two pulses irradiate a very thin foil (10-100 mn < skin depth) with same intensity from opposite sides. A stationary solution is derived describing foil compression between the two pulses. Circular polarization is chosen such that all electrons and positions rotate in the plane of the foil. We discuss the laser and target parameters required in order to optimize the γ photon and pair production rate. We find a γ- photon intensity of 7 x 1027/sr s and a positron density of 5 x 1022/cm3 when using two 330 fs, 7 x 1021W/cm2 laser pulses.