Two-photon excitation of atoms by ultrashort electromagnetic pulses in a discrete spectrum. Issue 12 (3rd July 2016)

• Record Type: Journal Article
• Authors: Astapenko, V. A.; Sakhno, S. V.
• Is Part Of: Journal of modern optics. Volume 63:Issue 12(2016)
• Page Start: 1213
• Page End: 1217
• Publication Date: 2016-07-03
• Subjects: Ultrashort pulse -- two-photon excitation -- hydrogen atom; Optics -- Periodicals; 535
• DOI: 10.1080/09500340.2015.1131859
• Languages: English
• ISSNs: 0950-0340

Abstract

Abstract: The paper is devoted to the theoretical investigation of two-photon excitation of atom in a discrete energy spectrum by ultrashort electromagnetic pulses of femto- and subfemtosecond ranges of durations. An analytical expression for the total probability of the process is derived. Numerical simulations are made for hydrogen and sodium atoms. It is shown that the total probability of the process is nonlinear function of pulse duration and character of this function depends strongly on the frequency detuning of pulse carrier frequency from two-photon resonance.