Atom interferometric studies of light scattering - A new technique for measuring atomic recoil

A new method for measuring cross sections for the scattering of electrons by laser-excited atoms is described. It is a generalization of the atomic-beam recoil technique, taking advantage of the recoil of atoms during resonant photon interactions to spatially separate excited from nonexcited atoms. A preliminary value for the total cross section for the scattering of electrons by the $3^{2}P_{\frac{3}{2}}({m}_{F}=3)$ state of sodium at 4.4 eV is presented.A new method for measuring cross sections for the scattering of electrons by laser-excited atoms is described. It is a generalization of the atomic-beam recoil technique, taking advantage of the recoil of atoms during resonant photon interactions to spatially separate excited from nonexcited atoms. A preliminary value for the total cross section for the scattering of electrons by the $3^{2}P_{\frac{3}{2}}({m}_{F}=3)$ state of sodium at 4.4 eV is presented.

Physical Review LettersJan 3, 197737 citations

Measurement of atomic recoil using ground state atom interferometry

M. Weel, Scott Beattie, I. Y. Chan +1 more

APSMay 1, 20040 citations

Observation of ground-state Ramsey fringes

M. Weel, Anantharaman Kumarakrishnan

We have used trapped ${}^{85}\mathrm{Rb}$ atoms to demonstrate an atom interferometric measurement of atomic recoil in the frequency domain. The measurement uses echo techniques to generate a Ramsey fringe pattern. The pattern exhibits recoil components consistent with theoretical predictions. We find the measurement to be insensitive to magnetic field gradients and discuss the prospects for a precision measurement of the recoil frequency.We have used trapped ${}^{85}\mathrm{Rb}$ atoms to demonstrate an atom interferometric measurement of atomic recoil in the frequency domain. The measurement uses echo techniques to generate a Ramsey fringe pattern. The pattern exhibits recoil components consistent with theoretical predictions. We find the measurement to be insensitive to magnetic field gradients and discuss the prospects for a precision measurement of the recoil frequency.

Physical Review AJun 26, 200322 citations

Improved measurement of atomic recoil frequency using atom interferometry

Scott Beattie, M. Weel, I. Y. Chan +2 more

Bulletin of the American Physical SocietyMay 18, 20050 citations

3^{2}P_{\frac{3}{2}}({m}_{F}=3)

state of sodium at 4.4 eV is presented.

We have used trapped

{}^{85}\mathrm{Rb}

atoms to demonstrate an atom interferometric measurement of atomic recoil in the frequency domain. The measurement uses echo techniques to generate a Ramsey fringe pattern. The pattern exhibits recoil components consistent with theoretical predictions. We find the measurement to be insensitive to magnetic field gradients and discuss the prospects for a precision measurement of the recoil frequency.