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We propose a two-color scheme of atom waveguides and one-dimensional(1D)optical lattices using evanes- cent wave fields of different transverse modes around an optical micro/nano-fiber.The atom guide poten- tial can be produced when the optical fiber carries a red-detuned light with TE_(01)mode and a blue-detuned light with HE_(11)mode,and the 1D optical lattice potential can be produced when the red-detuned light is transformed to the superposition of the TE_(01)mode and HE_(11)mode.The two trapping potentials can be transformed to each other for accurately controlling mode transformation for the red-detuned light.This might provide a new approach to realize flexible transition between the guiding and trapping states of atoms.
We propose a two-color scheme of atom waveguides and one-dimensional (1D) optical lattices using evanes- cent wave fields of different transverse modes around an optical micro / nano-fiber. Atom atomors potential-be able to produce when the optical fiber carries a red-detuned light with TE_ (01) mode and a blue-detuned light with HE_ (11) mode, and the 1D optical lattice potential can be produced when the red-detuned light is transformed to the superposition of the TE_ ( 01) mode and HE_ (11) mode. The two trapping potentials can be transformed to each other for accurately controlling mode transformation for the red-detuned light. This might provide a new approach to realize flexible transition between the guiding and trapping states of atoms .