Bessel beam superposition based on annular reflections

详细信息    查看全文

• 作者：Yongdong Wang^a ; Yilei Zhang^a ; ^{ylzhang@ntu.edu.sg" class="auth_mail" title="E-mail the corresponding author} ; Weijuan Qu^b ; Yong Ken Tye^c
• 关键词：Digital micromirror device ; Bessel beam ; Gaussian beam ; Superposition
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：127
• 期：21
• 页码：10158-10162
• 全文大小：905 K

文摘

Superposition of a Bessel beam with another beam was usually achieved using an Axicon or a SLM. Here we demonstrate a straightforward but powerful method to superpose a Bessel beam with another Bessel beam or a Gaussian beam based on a Digital Mirror Device (DMD). Different ring or circular patterns could be loaded in the DMD to generate Bessel beams or Gaussian beams respectively. By combining the ring and circular patterns, superposition of a Bessel beam with other Bessel beams or Gaussian beams could be achieved without using beam splitting or other complicated optical setups. The new DMD based Bessel beam superposition method could be easily controlled, quickly switched, or conveniently packed.