@inproceedings{64b92ae79bb846b5a108b668dc882c16,
title = "Measurement of the orientation of the fast/slow axis and surface roughness for birefringent material",
abstract = "When light propagates in a heterogeneous object, its propagation speed and refractive index value usually change with different vibration directions. However, when light passes through a heterogeneous optical crystal from a particular direction, no birefringence occurs, and this special direction is the optical axis of the birefringent material. Presently, the traditional measurement method for determining the optical axis relies on scalar imaging, which can only characterize scalars and cannot characterize polarization. Given the anisotropy of birefringent materials, it becomes difficult to determine the optical axis and measure the surface roughness. Speckle method, as an important non-contact measurement method, has gradually become the main method for measuring surface roughness due to its advantages such as small error and easy operation. The purpose of this article is to provide a device and method, to solve the problems of measuring the optical axis and roughness of birefringent materials, simultaneously.",
keywords = "autocorrelation function, birefringence, laser speckle, Optical axis measurement, scattering imaging, surface roughness",
author = "Jiamiao Lei and Wenxuan Liu and Yicheng Tuo and Hanson, {Steen G.} and Mitsuo Takeda and Wei Wang",
note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; 8th International Conference on Speckle Metrology 2023, Speckle 2023 ; Conference date: 18-10-2023 Through 20-10-2023",
year = "2024",
month = mar,
day = "4",
doi = "10.1117/12.3021239",
language = "English",
isbn = "9781510674585",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Weiguo Liu and Wei Wang and Yechuan Zhu",
booktitle = "Speckle 2023",
address = "United States",
}