$\frac{\lambda }{8}$-period optical potentials

Abstract

A Raman configuration of counterpropagating traveling wave fields, one of which is $lin\perp lin$ polarized and the other $lin\Vert lin$ polarized, is shown to lead to optical potentials having $\frac{\lambda }{8}$ periodicity. Such optical potentials may be used to construct optical lattices having periodicity. Using numerical diagonalization, we obtain the optical potentials for ${}^{\text{85}}$Rb atoms.

3 pages, 2 figures

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