Modification of resonance fluorescence and absorption in a <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>Λ</mi></math></span> system by four-wave mixing

B. A. Grishanin; V. N. Zadkov; D. Meschede

doi:10.1103/PhysRevA.58.4235

Modification of resonance fluorescence and absorption in a $Λ$ system by four-wave mixing

B. A. Grishanin, V. N. Zadkov, and D. Meschede

Phys. Rev. A 58, 4235 – Published 1 November 1998

Abstract

A universal mechanism destroying coherence in a $Λ$ system driven by two resonant laser fields due to four-photon interactions is analyzed theoretically. It is shown that this mechanism gives rise to novel spectral structures in resonance fluorescence. The “dark resonance” in absorption (dispersion) spectra is affected as well.