Atomic Funnel Composed of an HE11-Mode Output Hollow Beam
NI Yun2, LIU Nan-Chun2, YIN Jian-Ping1,2
1Key Laboratory for Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062
2Department of Physics, Suzhou University, Suzhou 215006
Atomic Funnel Composed of an HE11-Mode Output Hollow Beam
NI Yun2;LIU Nan-Chun2;YIN Jian-Ping1,2
1Key Laboratory for Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062
2Department of Physics, Suzhou University, Suzhou 215006
Abstract: Using exact solutions of Maxwell equations based on the vector model, we calculate the diffracted near- and far-field distributions of the HE11-mode output beam from a micron-sized hollow optical fibre under the Fresnel approximation, and compare the differences between the HE11- and LP01-mode output beams. Our study shows that it is unsuitable to calculate the diffracted near-field distribution of the hollow fibre by using weakly waveguiding approximation, and the near- and far-field intensity distributions of the HE11-mode output beam are doughnut-like, which can be used to form a simple atomic funnel as it is blue-detuned.