title: Note: Optimal choice of the reflector by phase analysis for heterodyne interferometric roll angle measurement.
abstract: The choice of an actual reflector instead of an ideal or perfect reflector has to be dealt with for heterodyne-interferometric roll angle measurement methods. The candidates of regular reflectors such as corner cube prism and right angle prism are analyzed by the homogeneous coordinate transformation method, which provides a theoretical basis for the determination of the actual reflector. Furthermore, the influences of the phase loss of the determined reflector are strictly argued due to non-perfect or natural characteristics itself. Several tactics are considered to solve this problem by phase analysis. By contrast, it is an optimal choice that mirrors-based right angle prism can improve evidently the phase loss by experiment.
authors.affiliation: Laboratory of X-ray Optics and Technology, Institute of High Energy Physics, CAS, Beijing 100049, China.
authors.forename: Shanzhi
authors.initials: S
authors.lastname: Tang
authors.affiliation: School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Laboratory of X-ray Optics and Technology, Institute of High Energy Physics, CAS, Beijing 100049, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.affiliation: Laboratory of X-ray Optics and Technology, Institute of High Energy Physics, CAS, Beijing 100049, China.
authors.forename: Junxiang
authors.initials: J
authors.lastname: Gao
authors.affiliation: Laboratory of X-ray Optics and Technology, Institute of High Energy Physics, CAS, Beijing 100049, China.
authors.forename: Yongcheng
authors.initials: Y
authors.lastname: Jiang
authors.affiliation: Laboratory of X-ray Optics and Technology, Institute of High Energy Physics, CAS, Beijing 100049, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Zhang