TY - JOUR

T1 - Pair production seeded by electrons in noble gases as a method for laser intensity diagnostics

AU - Aleksandrov, I. A.

AU - Andreev, A. A.

N1 - Publisher Copyright: © 2021 American Physical Society.

PY - 2012/11

Y1 - 2012/11

N2 - In this study we explore the possibility of using the process of electron-positron pair creationin strong laser fields as a tool for measuring the intensity of the corresponding laser radiation. Inthe initial state we consider either free electron gas or gas of neutral xenon, the electrons of whichget ionized. Once these seed electrons gain sufficient energy in the external laser field, they canemit high-energy photons which subsequently decay producing electron-positron pairs via the BreitWheeler mechanism. By detecting the resulting positrons, one can recover the value of the laserintensity by means of the one-to-one correspondences deduced in the present investigation. Weanalyze two different configurations of the external field: the setup involving an individual focusedlaser pulse and the combination of two counterpropagating laser pulses. Performing numericalcalculations and analyzing their accuracy, we demonstrate that based on our estimates, the laserintensity can be determined within the range 1023–1026 W/cm2 with a relative uncertainty of 10–50%.

AB - In this study we explore the possibility of using the process of electron-positron pair creationin strong laser fields as a tool for measuring the intensity of the corresponding laser radiation. Inthe initial state we consider either free electron gas or gas of neutral xenon, the electrons of whichget ionized. Once these seed electrons gain sufficient energy in the external laser field, they canemit high-energy photons which subsequently decay producing electron-positron pairs via the BreitWheeler mechanism. By detecting the resulting positrons, one can recover the value of the laserintensity by means of the one-to-one correspondences deduced in the present investigation. Weanalyze two different configurations of the external field: the setup involving an individual focusedlaser pulse and the combination of two counterpropagating laser pulses. Performing numericalcalculations and analyzing their accuracy, we demonstrate that based on our estimates, the laserintensity can be determined within the range 1023–1026 W/cm2 with a relative uncertainty of 10–50%.

KW - COMPLEX ATOMS

KW - ENERGY

KW - FIELD

KW - IN-CELL CODE

KW - IONIZATION RATES

KW - PHYSICS

KW - WAVE

UR - https://arxiv.org/pdf/2104.10779.pdf

UR - http://www.scopus.com/inward/record.url?scp=85119101581&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/d6dc9c16-bdfd-38d7-bb99-8a1e38f645e6/

U2 - https://doi.org/10.1103/PhysRevA.104.052801

DO - https://doi.org/10.1103/PhysRevA.104.052801

M3 - Article

VL - 104

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

SN - 1050-2947

IS - 5

M1 - 052801

ER -