基于电光晶体的电控平板涡旋光束的产生及传输特性
Generation and propagation characterization of a vortex beam through an electro-optical crystal-based electrically controlled flat plate
摘要：
随着对现代光学中几乎所有领域的潜在应用需求的增加，涡旋光束的产生引起了人们极大的兴趣。基于电光晶体平板，提出了一种利用普克尔斯效应产生涡旋光束的电控方法。与传统方法相比，该方法可以灵活地调节涡旋光束的波长和拓扑电荷。模拟了光束在平板上的传输，研究了传输光束的轨道角动量模谱。OAM模谱与模拟结果吻合较好。该方法提高了涡旋光束产生的灵活性，在光通信和光学操纵等领域有着重要的应用前景。
英文摘要：
With the increasing demand for potential applications in almost all fields in modern optics, the generation of vortex beams has attracted significant interest. Based on a flat plate made of electro-optical crystals, we propose an electrically controlling method to generate vortex beams assisted by the Pockels effect. Compared with traditional methods, our method allows flexibly tuning the wavelength and topological charge of the generated optical vortex beams. We simulate the propagation of optical beams transmitted from the flat plate and investigate the orbital-angular-momentum(OAM)-mode spectra of the transmitted optical beams. The OAM-mode spectra are in agreement well with the simulation results. The proposed method improves the flexibility of the generation of optical vortex beams, may gain more significant potential applications in optical communication and optical manipulation.
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