We discuss some physical effects that take place in multifrequency light fields with a nonzero average cube of the electric field, 〈E3〉 ≠ 0. We calculated the polar asymmetry in electron emission that is due to interference between two-photon ionization by the fundamental radiation (ω) and one-photon ionization by the second-harmonic (2ω) wave. The expression for the quasi-static force, which acts on electrons and is proportional to the average cube of the light field, is derived.
© 1991 Optical Society of America
Original Manuscript: May 22, 1989
Manuscript Accepted: May 2, 1990
Published: January 1, 1991
N. B. Baranova and B. Ya. Zel’dovich, "Physical effects in optical fields with nonzero average cube, 〈E3〉 ≠ 0," J. Opt. Soc. Am. B 8, 27-32 (1991)