Propagation dynamics of Janus vortex waves

Propagation dynamics of Janus vortex waves

We study the propagation dynamics of Janus vortex wave under the action of a focusing lens based upon the formula of focused circular vortex Airy beams. Two dark foci would be generated under the action of a lens, and thus a perfect light hollow bottle could be formed. By controlling corresponding p...

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Veröffentlicht in:Optics express 2019-11, Vol.27 (23), p.34484-34495
Hauptverfasser: Yu, Wenlei, Zhao, Shuofeng, Jiang, Peipei, Jiang, Yunfeng
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container_end_page 34495
container_issue 23
container_start_page 34484
container_title Optics express
container_volume 27
creator Yu, Wenlei
Zhao, Shuofeng
Jiang, Peipei
Jiang, Yunfeng
description We study the propagation dynamics of Janus vortex wave under the action of a focusing lens based upon the formula of focused circular vortex Airy beams. Two dark foci would be generated under the action of a lens, and thus a perfect light hollow bottle could be formed. By controlling corresponding parameters, we could control the focal position and the relative intensity between the two focal intensities. The off-axis optical vortex (OV) would rotate rapidly in two focal regions, but keep still in the lens focus region. The angular displacement of OV in each focusing process is nearly π/2. (Note that the angular displacement for an off-axis OV in single focusing process of Gaussian beam is nearly π.) Two same OVs would repel to each other, but two opposite OVs would attract each other and annihilate at first focus plane in Janus vortex waves.
doi_str_mv 10.1364/OE.27.034484
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title Propagation dynamics of Janus vortex waves
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