• Acta Optica Sinica
  • Vol. 16, Issue 12, 1745 (1996)
[in Chinese] and [in Chinese]
Author Affiliations
  • [in Chinese]
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    [in Chinese], [in Chinese]. Study of Force of TEM01Laser on Two Level Atoms[J]. Acta Optica Sinica, 1996, 16(12): 1745 Copy Citation Text show less

    Abstract

    The steady and 1st order velocity dependent vector solutions of forces for two level atom are obtained. The solutions are applied to TEM01 laser beam and analysis shows that it exists vortex force acting on the atom. On the condition of z≤z0=kw2/λ and large blue detuning δ≥Ω0≥Γ, the forces of TEM01 travelling and standing wave field acting on atom are analyzed. In general, for travlling wave filed the spontaneous emission playes an important role. In the region of r≤λ, atoms are only subject ot transeverse trapping force. For standing wave field the influence of spontaneous emission can be negligible. Averaging the forces in wavelength region along the direction of z, we show that there exist transverse trapping force and damping force for velocity vrer and there has not longtudinal trapping force but has longtudinal damping force for vzez. In the region of r≤λ, there only exists transeverse trapping force as well.