Tunable Polycyclic Chiral Beams,Annalen Der Physik

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Tunable Polycyclic Chiral Beams
Annalen Der Physik ( IF 2.2 ) Pub Date : 2020-03-09 , DOI: 10.1002/andp.201900530
Yanping Lan ₁ , Yixian Qian _{1,

2} , Zhijun Ren ₁

Affiliation

The generation of polycyclic chiral beams by inducing annular spiral zone phases that consist of multiple subphases is numerically and experimentally demonstrated. Each subphase is composed of a spiral phase, an equiphase, and a radial phase. The number and twisting direction of the spiral intensity lobes for every layer could be individually controlled. Furthermore, the orientations for the twisting lobes could be tuned by changing the introduced equiphase gradient. More importantly, such optical fields also show rotation property when the equiphases with gradient are dynamically and continuously imposed. This advantage of rotation also brings about the possibility of such chiral beams to rotate particles. Such beams would be advantageous for manufacturing tunable chiral metamaterials and have potential applications in optical tweezers and optical communication.

中文翻译：

可调多环手性梁

数值和实验证明了通过诱导由多个子相组成的环形螺旋带相产生多环手性束。每个子相均由螺旋相，等相和径向相组成。每层螺旋强度波瓣的数量和扭曲方向可以单独控制。此外，可以通过更改引入的等相梯度来调整扭曲波瓣的方向。更重要的是，当动态且连续施加具有梯度的等相时，此类光学场也显示出旋转特性。旋转的优点还带来了这种手性束旋转粒子的可能性。

更新日期：2020-03-09

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