Ultra-short strong excitation of two-level systems

Pankaj K. Jha, Hichem Eleuch, Fabio Grazioso

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We present a model describing the use of ultra-short strong pulses to control the population of the excited level of a two-level quantum system. In particular, we study an off-resonance excitation with a few cycles pulse which presents a smooth phase jump i.e. a change of the pulse's phase which is not step-like, but happens over a finite time interval. A numerical solution is given for the time-dependent probability amplitude of the excited level. The control of the excited level's population is obtained acting on the shape of the phase transient, and other parameters of the excitation pulse.

Original languageEnglish (US)
Pages (from-to)198-203
Number of pages6
JournalOptics Communications
StatePublished - Nov 15 2014
Externally publishedYes


  • Few cycles
  • Phase jump
  • Two-level systems
  • Ultra-short strong pulses

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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