Title: Synthesis of higher-order Poincaré sphere THz beams Show Chinese title

Title: 高阶庞加莱球太赫兹光束的合成

Abstract: A novel method to generate vector vortex THz beams with angular momentum by a pair of pumps was reported. The helicity of the vector THz beam, that from polarization to orbital angular momentum can be finely tuned by manipulating the pulse delay between two pump pulses and a S-waveplate. All the states of THz vector vortices on the higher-order Poincar\'e sphere are able to be generated. The synthesis was theoretically explored and experimentally verified. This approach paves the way to the sources of versatile structured THz beams and may benefit the potential applications. Show Chinese abstract

Abstract: 一种通过一对泵浦产生具有角动量的矢量涡旋太赫兹光束的新方法被报道。 矢量太赫兹光束的螺旋度，从偏振到轨道角动量可以通过调节两个泵浦脉冲之间的脉冲延迟和S波片进行精细调节。 在高阶庞加莱球面上的所有太赫兹矢量涡旋状态都能够被生成。 该合成方法被理论探索并实验验证。 这种方法为多功能结构化太赫兹光束的源提供了途径，并可能有助于潜在的应用。