Optical potential for atom guidance in a dark hollow laser beam Article

cited authors

  • Yin, J; Zhu, Y; Wang, W; Wang, Y; Jhe, W

fiu authors

abstract

  • We analyze the optical potential for atom guidance in a dark hollow laser beam and compare it with that generated by the evanescent wave in a micrometer-sized hollow optical fiber. We calculate dependence of the optical potential on various parameters: radial position r, laser-atom detuning Δ, beam power Po, and propagation distance Z. We experimentally generated a dark hollow laser beam from a hollow optical fiber with a 7-μm hole diameter and obtained a coupling efficiency of ∼50% for the LP01 mode. Our study shows that a dark hollow laser beam can produce an optical potential deep enough to guide cold atoms from a magneto-optical trap. © 1998 Optical Society of America.

publication date

  • January 1, 1998

Digital Object Identifier (DOI)

start page

  • 25

end page

  • 33

volume

  • 15

issue

  • 1