TY - JOUR
T1 - Critical power for self-focusing in the case of ultrashort laser pulses
AU - Polynkin, P.
AU - Kolesik, M.
PY - 2013/5/23
Y1 - 2013/5/23
N2 - We attempt to evaluate the applicability of the concept of the critical power for self-focusing, originally developed for intense quasi-continuous-wave (cw) beams, to the case of ultra-intense and ultrashort laser pulses propagating in air. Our results show that, unlike in the cw case, no particular value of peak pulse power can be viewed as a sharp demarcation line between linear and nonlinear propagation regimes. Our analysis further reveals the important role played by chromatic dispersion in the propagation dynamics of the laser pulse.
AB - We attempt to evaluate the applicability of the concept of the critical power for self-focusing, originally developed for intense quasi-continuous-wave (cw) beams, to the case of ultra-intense and ultrashort laser pulses propagating in air. Our results show that, unlike in the cw case, no particular value of peak pulse power can be viewed as a sharp demarcation line between linear and nonlinear propagation regimes. Our analysis further reveals the important role played by chromatic dispersion in the propagation dynamics of the laser pulse.
UR - http://www.scopus.com/inward/record.url?scp=84878476425&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84878476425&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.87.053829
DO - 10.1103/PhysRevA.87.053829
M3 - Article
AN - SCOPUS:84878476425
SN - 1050-2947
VL - 87
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 5
M1 - 053829
ER -