Nonlinear scattering of ultrashort laser pulses on two-level system

Valery A. Astapenko; Sergey V. Sakhno

doi:10.1117/12.2178262

18 May 2015 Nonlinear scattering of ultrashort laser pulses on two-level system

Valery A. Astapenko, Sergey V. Sakhno

Author Affiliations +

Proceedings Volume 9503, Nonlinear Optics and Applications IX; 95030P (2015) https://doi.org/10.1117/12.2178262
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

Abstract

The presentation is devoted to the theoretical investigation of nonlinear scattering of ultrashort electromagnetic pulses (USP) on two-level quantum system.

We consider the scattering of several types of USP, namely, so called corrected Gaussian pulse (CGP) and cosine wavelet pulse. Such pulses have no constant component in their spectrum in contrast with traditional Gaussian pulse. It should be noted that the presence of constant component in the limit of ultrashort pulse durations leads to unphysical results.

The main purpose of the present work is the investigation of the change of pulse temporal shape after scattering as a function of initial phase at different distances from the target. Numerical calculations are based on the solution of Bloch equations and expression for scattering field strength via dipole moment of two-level system exposed by the action of incident USP.

In our calculation we also account for the influence of refracting index of the air on electric field strength in the pulse after scattering.

Citation Download Citation

Valery A. Astapenko and Sergey V. Sakhno "Nonlinear scattering of ultrashort laser pulses on two-level system", Proc. SPIE 9503, Nonlinear Optics and Applications IX, 95030P (18 May 2015); https://doi.org/10.1117/12.2178262

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