Nonlinear absorption by quantum interference in cold atoms Article

cited authors

  • Yan, M; Rickey, EG; Zhu, Y

fiu authors

abstract

  • We report an experimental observation of third-order nonlinear absorption by quantum interference in 87Rb atoms cooled and confined in a magneto-optic trap. A coupling laser creates electromagnetically induced transparency (EIT) in a multilevel Rb system in which the third-order nonlinear absorption is enhanced by constructive quantum interference while the linear absorption is inhibited by destructive interference. Our experiment demonstrates the EIT system proposed by Harris and Yamamoto [Phys. Rev. Lett. 81, 3611 (1998)], which absorbs two photons but not one photon in the dressed-state picture. © 2001 Optical Society of America.

publication date

  • April 15, 2001

Digital Object Identifier (DOI)

start page

  • 548

end page

  • 550

volume

  • 26

issue

  • 8