Motivated by the potential use of electromagnetically induced transparency (EIT) to measure atomic parity nonconservation (PNC), we have studied EIT and associated optical rotation for a three-level system in thallium vapor. EIT allows sub-Doppler resolution of the ${6P}_{1/2}\ensuremath{\rightarrow}{6P}_{3/2}$ mixed magnetic dipole, electric quadrupole transition at $1.28\ensuremath{\mu}\mathrm{m}$ when $0.535\ensuremath{-}\ensuremath{\mu}\mathrm{m}$ radiation acts on the ${6P}_{3/2}\ensuremath{\rightarrow}{7S}_{1/2}$ transition. Our measurements include rotation due to electromagnetically induced birefringence and Faraday rotation perturbed by EIT. We also identify a new method for determining the amplitude ratio $E2/M1$ for the $1.28\ensuremath{-}\ensuremath{\mu}\mathrm{m}$ transition. The possible advantages of an EIT technique for measuring atomic PNC are discussed in the context of our results.Motivated by the potential use of electromagnetically induced transparency (EIT) to measure atomic parity nonconservation (PNC), we have studied EIT and associated optical rotation for a three-level system in thallium vapor. EIT allows sub-Doppler resolution of the ${6P}_{1/2}\ensuremath{\rightarrow}{6P}_{3/2}$ mixed magnetic dipole, electric quadrupole transition at $1.28\ensuremath{\mu}\mathrm{m}$ when $0.535\ensuremath{-}\ensuremath{\mu}\mathrm{m}$ radiation acts on the ${6P}_{3/2}\ensuremath{\rightarrow}{7S}_{1/2}$ transition. Our measurements include rotation due to electromagnetically induced birefringence and Faraday rotation perturbed by EIT. We also identify a new method for determining the amplitude ratio $E2/M1$ for the $1.28\ensuremath{-}\ensuremath{\mu}\mathrm{m}$ transition. The possible advantages of an EIT technique for measuring atomic PNC are discussed in the context of our results.

Physical Review LettersApr 27, 199830 citations

Atomic Motion in a Laser Standing Wave

Jean Dalibard, Ch Salomon, Alain Aspect +3 more

Springer series in optical sciences/SPringer series in optical sciencesJan 1, 19876 citations

Cavity-Enhanced Parity-Nonconserving Optical Rotation in Metastable Xe and Hg

Lykourgos Bougas, George E. Katsoprinakis, Wolf von Klitzing +2 more

We propose the measurement of cavity-enhanced parity-nonconserving (PNC) optical rotation in several transitions of metastable Xe and Hg, including Xe ${(}^{2}{P}_{3/2}^{o})6s\text{ }^{2}[3/2{]}_{2}^{o}\ensuremath{\rightarrow}{(}^{2}{P}_{1/2}^{o})6s\text{ }^{2}[1/2{]}_{1}^{o}$ and Hg $6s6p\text{ }^{3}P_{2}^{o}\ensuremath{\rightarrow}6s6p\text{ }^{1}P_{1}^{o}$, with calculated amplitude ratios of ${E}_{1}^{\mathrm{PNC}}/M1=11\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}8}$ and $10\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}8}$, respectively. We demonstrate the use of a high-finesse bow-tie cavity with counterpropagating beams and a longitudinal magnetic field, which allows the absolute measurement of chiral optical rotation, with a path length enhancement of about ${10}^{4}$ , necessary for PNC measurement from available column densities of ${10}^{14}\text{ }\text{ }{\mathrm{cm}}^{\ensuremath{-}2}$ for metastable Xe or Hg. Rapid PNC-signal reversal, allowing robust background subtraction, is achieved by shifting the cavity resonance to an opposite polarization mode or by inverting the magnetic field. The precise measurement of isotope and nuclear-spin dependent ${E}_{1}^{\mathrm{PNC}}$ amplitudes provides a sensitive low-energy test of the standard model.We propose the measurement of cavity-enhanced parity-nonconserving (PNC) optical rotation in several transitions of metastable Xe and Hg, including Xe ${(}^{2}{P}_{3/2}^{o})6s\text{ }^{2}[3/2{]}_{2}^{o}\ensuremath{\rightarrow}{(}^{2}{P}_{1/2}^{o})6s\text{ }^{2}[1/2{]}_{1}^{o}$ and Hg $6s6p\text{ }^{3}P_{2}^{o}\ensuremath{\rightarrow}6s6p\text{ }^{1}P_{1}^{o}$, with calculated amplitude ratios of ${E}_{1}^{\mathrm{PNC}}/M1=11\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}8}$ and $10\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}8}$, respectively. We demonstrate the use of a high-finesse bow-tie cavity with counterpropagating beams and a longitudinal magnetic field, which allows the absolute measurement of chiral optical rotation, with a path length enhancement of about ${10}^{4}$, necessary for PNC measurement from available column densities of ${10}^{14}\text{ }\text{ }{\mathrm{cm}}^{\ensuremath{-}2}$ for metastable Xe or Hg. Rapid PNC-signal reversal, allowing robust background subtraction, is achieved by shifting the cavity resonance to an opposite polarization mode or by inverting the magnetic field. The precise measurement of isotope and nuclear-spin dependent ${E}_{1}^{\mathrm{PNC}}$ amplitudes provides a sensitive low-energy test of the standard model.

Physical Review LettersMay 25, 201237 citations

Manipulating Neutral Atoms and Molecules by Strong Non-Resonant Laser Fields

Mark Y. Vilensky

Jan 1, 20080 citations

E2/M1

for the $1.28\ensuremath{-}\ensuremath{\mu}\mathrm{m}$ transition. The possible advantages of an EIT technique for measuring atomic PNC are discussed in the context of our results.

{10}^{4}

, necessary for PNC measurement from available column densities of ${10}^{14}\text{ }\text{ }{\mathrm{cm}}^{\ensuremath{-}2}$ for metastable Xe or Hg. Rapid PNC-signal reversal, allowing robust background subtraction, is achieved by shifting the cavity resonance to an opposite polarization mode or by inverting the magnetic field. The precise measurement of isotope and nuclear-spin dependent

{E}_{1}^{\mathrm{PNC}}

amplitudes provides a sensitive low-energy test of the standard model.