title: Full vector measurements of converging terahertz beams with linear, circular, and cylindrical vortex polarization.
abstract: The complete vector information of converging terahertz (THz) beams with linear, circular, and cylindrical vortex polarization are precisely measured by using a THz digital holographic imaging system. The transverse (Ex, Ey) and longitudinal (Ez) polarization components of the THz fields around the focal point are separately obtained utilizing the detection crystals with different crystalline orientations. The measured results are in good agreement with the theoretical expectations. This imaging technique provides an effective way for revealing the vector diffraction properties of the THz electro-magnetic waves.
authors.forename: Xinke
authors.initials: X
authors.lastname: Wang
authors.forename: Sen
authors.initials: S
authors.lastname: Wang
authors.forename: Zhenwei
authors.initials: Z
authors.lastname: Xie
authors.forename: Wenfeng
authors.initials: W
authors.lastname: Sun
authors.forename: Shengfei
authors.initials: S
authors.lastname: Feng
authors.forename: Ye
authors.initials: Y
authors.lastname: Cui
authors.forename: Jiasheng
authors.initials: J
authors.lastname: Ye
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang