Two-photon resonance induced by the dipole-dipole interaction. Academic Article uri icon


  • The two-photon absorption by a pair of two-level atoms interacting with an incident field is examined. If the laser field is weak, then the existence of the dipole-dipole interaction-induced two-photon resonance follows from the higher-order Fermi golden rule. The effects of spontaneous emission and intense fields on the dipole-dipole interaction-induced two-photon resonance is studied using density-matrix methods. The presence of an intense field is shown to result in a significant enhancement of the two-photon resonance. Numerical results for the probability of simultaneous excitation of two atoms, for the atomic correlations, and for the radiated field intensity are presented. 1992 The American Physical Society.

published proceedings

  • Phys Rev A

author list (cited authors)

  • Varada, G. V., & Agarwal, G. S.

citation count

  • 78

complete list of authors

  • Varada, GV||Agarwal, GS

publication date

  • May 1992