Method to enhance the accuracy of the retardance measurement of quarter-wave plates
- Resource Type
- Authors
- Qiao Tan; Zheng Ping Wang; Zong Jun Huang; Jinhui Shi; Qing Bo Li
- Source
- SPIE Proceedings.
- Subject
- Engineering
Computer science
Fast axis
business.industry
Mechanical Engineering
Waveplate
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Optics
Measurement uncertainty
Prism
Electrical and Electronic Engineering
business
Laser beams
- Language
- ISSN
- 0277-786X
A novel method used for the enhancement of the accuracy of the measurement of the retardance of a quarter-wave plate employing two polaroids and a prism is reported under the condition of knowing the direction of the fast axis of the plate. The theoretical analysis of the principle and the uncertainty formula are given. An application example is also demonstrated. The measured result of the example is verified with an experiment. The main advantages of this method include the accuracy enhancement, simple measuring setup and easy operation.