Imaging polariscope for the characterization of linear birefringence materials in full-scale range of phase retardation and principal axis

Hsu Shan, Tsung Chih Yu, Yu-Lung Lo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, heterodyne interferometers designed for sequentially measuring the slow-axis angle and phase retardation of linear birefringent materials (LBM) in full-field and full-range are proposed. By using a complex programmable logic device (CPLD) and a charge-coupled device (CCD), integrating buckets with multiple frames are achieved. The sequentially measuring scheme and the algorithm are designed to achieve full-range measurement. The dynamic range of the principal axis and phase retardation with sequential measurement are from 0° to 180° and 0° to 360°, respectively. The standard deviation of 2-D distributions in principal axis and phase retardation are 0.14° and 0.27°, respectively. Also, the proposing system has the ability to tell the principal axis of LBM is slow or fast axis. The intensity noises induced by environmental disturbance can be reduced by the elimination of the DC component of the output light intensity in the algorithm.

Original languageEnglish
Title of host publicationSociety for Experimental Mechanics - SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009
Pages1467-1476
Number of pages10
Volume3
Publication statusPublished - 2009
EventSEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009 - Albuquerque, NM, United States
Duration: 2009 Jun 12009 Jun 4

Other

OtherSEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009
CountryUnited States
CityAlbuquerque, NM
Period09-06-0109-06-04

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All Science Journal Classification (ASJC) codes

  • Computational Mechanics

Cite this

Shan, H., Yu, T. C., & Lo, Y-L. (2009). Imaging polariscope for the characterization of linear birefringence materials in full-scale range of phase retardation and principal axis. In Society for Experimental Mechanics - SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2009 (Vol. 3, pp. 1467-1476)