Acta Optica Sinica, Volume. 31, Issue 8, 826001(2011)
Propagation Properties of Controllable Dark-Hollow Beams in Uniaxial Crystals
Based on the paraxial vectorial theory of beam propagating in uniaxial anisotropic media, the propagation equations of beam in uniaxial crystal are obtained. By using these equations, the propagation of controllable dark-hollow beam (CDHB) in uniaxial crystal is studied, and the field distribution expression of propagation transformation of this beam in uniaxial crystal is obtained. By using the derived expressions, numerical calculation examples have been presented to illustrate its propagation properties. It shows that the distribution of intensity is greatly affected by controllable parameter ξ and the beam order N when the CDHBs propagate in uniaxial crystal. With the increase of parameter ξ, the size of dark region of the beam also increases, and the intensity decreases. The study also finds that when the beam order N increases, the size of the dark region of beam also increases, but the intensity decreases. With the increasing of the beam transformation distance z, the central intensity will increase gradually, and the distribution of intensity does no longer keep the original nature of hollow.
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Zhang Weilin, Zhang Tingrong, Li Yantao, Huang Yongchao, Song Hongyuan, Bao Jianqin. Propagation Properties of Controllable Dark-Hollow Beams in Uniaxial Crystals[J]. Acta Optica Sinica, 2011, 31(8): 826001
Category: Physical Optics
Received: Feb. 14, 2011
Accepted: --
Published Online: Jul. 21, 2011
The Author Email: Weilin Zhang (zwlbijie@163.com)