title: Modulation transfer spectroscopy mediated by spontaneous emission.
abstract: We report the polarization dependence of the spectrum in modulation transfer spectroscopy for the transitions from the lower ground state (F(g) = 1) of (87)Rb atoms. We measured the spectra for the two polarization configurations where the carrier and probe beams were linearly polarized in parallel or perpendicular directions. The measured spectra were in excellent agreement with calculated results. The spectra were strongly dependent on the polarization configurations. In particular, the signal for parallel polarization configuration was generated via an incoherent process mediated by spontaneous emission.
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon 305-340, Korea.
authors.forename: Sang Eon
authors.initials: SE
authors.lastname: Park
authors.forename: Heung-Ryoul
authors.initials: HR
authors.lastname: Noh
mesh_terms: D003198:Computer Simulation; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation; D013057:Spectrum Analysis / Q000379:methods*