Probing nonadiabatic molecular alignment by spectral modulation


KAYA N. , Kaya G. , SAYRAC M., Horan Y., ANUMULA S., STROHABER J., ...More

OPTICS EXPRESS, vol.24, no.3, pp.2562-2576, 2016 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 3
  • Publication Date: 2016
  • Doi Number: 10.1364/oe.24.002562
  • Title of Journal : OPTICS EXPRESS
  • Page Numbers: pp.2562-2576

Abstract

We investigated molecular alignment wakes of femtosecond laser pulses. Evolution of nonadiabatic molecular alignment in nitrogen gas has been measured via its nonlinear interaction effects with a variably delayed probe pulse. The induced rotational wave packet was mapped as a function of the angular difference between polarization directions of femtosecond pump and probe pulses as well as their relative delay and the plot of the variations of the rotational wave packet, i.e. "quantum carpet", was found to be in good agreement with the calculated angular and temporal dependencies of molecular alignment parameter. (C) 2016 Optical Society of America