3 papers
cond-mat.dis-nn2000
Resonant Processes and Exciton Propagation in a Frozen Gas
J. S. Frasier, V. Celli
We present numerical simulations of a theory of resonant processes in a frozen gas of excited atoms interacting via dipole-dipole potentials that vary as , where is the…
cond-mat2000
Multiple energy x-ray holography: the polarization effect
V. Bortolani, V. Celli, A. M. Marvin
We present the theory for Multiple Energy X-ray Holography (MEXH), using a multipole expansion for the scattered field. We find that light polarization plays a crucial role in the…
cond-mat.dis-nn1999
Laser Excitation of Polarization Waves in a Frozen Gas
V. Celli, J. S. Frasier
Laser experiments with optically excited frozen gases entail the excitation of polarization waves. In a continuum approximation the waves are dispersionless, but their frequency de…