Absorption spectra of two-level atoms interacting with a strong polychromatic pump field and an arbitrarily intense probe field

Tai Hyun Yoon, Myung Sai Chung, Hai Woong Lee

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

A numerical method is introduced that solves the optical Bloch equations describing a two-level atom interacting with a strong polychromatic pump field with an equidistant spectrum and an arbitrarily intense monochromatic probe field. The method involves a transformation of the optical Bloch equations into a system of equations with time-independent coefficients at steady state via double harmonic expansion of the density-matrix elements, which is then solved by the method of matrix inversion. The solutions so obtained lead immediately to the determination of the polarization of the atomic medium and of the absorption and dispersion spectra. The method is applied to the case when the pump field is bichromatic and trichromatic, and the physical interpretation of the numerically computed spectra is given.

Original languageEnglish
Pages (from-to)2547-2553
Number of pages7
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume60
Issue number3
Publication statusPublished - 1999 Sep 1
Externally publishedYes

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pumps
absorption spectra
probes
atoms
inversions
harmonics
expansion
polarization
coefficients

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Absorption spectra of two-level atoms interacting with a strong polychromatic pump field and an arbitrarily intense probe field. / Yoon, Tai Hyun; Chung, Myung Sai; Lee, Hai Woong.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 60, No. 3, 01.09.1999, p. 2547-2553.

Research output: Contribution to journalArticle

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