Analysis of phase on axis of the Bessel beam and self-imaged bottle beam

作者：Wu Fengtie^*; Cheng Zhiming; Wang Tao; Pu Jixiong

来源：Acta Optica Sinica, 2013, 33(3): 0326001.

DOI：10.3788/AOS201333.0326001

• Bessel beam
• Bottle beams
• Dark field
• Diffraction theory
• On-axis
• Phase singularities
• Propagation axis
• Singular points

Phases of Bessel beam and self-imaged bottle beam along propagation axis are analyzed. Phases of ideal Bessel beam and Bessel beam generated by axicon along propagation axis are periodic saw-toothed distribution after analysis with diffraction theory. And phase of self-imaged bottle beam generated by interference of two Bessel beams is also saw-toothed distribution, while phase singularity is found at the zero intensity position. In simulation experiment, the minimum intensity of self-imaged bottle beam on axis is not zero, therefore there is not phase singularity on axis. The result of research is valuable in generating self-imaged bottle beam by phase modulation, whose dark field is zero.

• 出版日期2013