A three-spectrum method for accurate calibration of bi-plate zero-order retarder |
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| Authors: | Zhigang Han Zhi Xu Lei Chen |
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| Affiliation: | [1]Department of Chemistry and Biochemistry, University of Missouri-St.Louis, St. Louis, MO 63121, USA [2]Center for NanoScience, University of Missouri-St.Louis, St. Louis MO 63121, USA [3]School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China |
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| Abstract: | A new spectroscopic method is proposed for the characterization of optical zero-order retarders.It is demonstrated that the retardance as well as the variation of the effective fast axis of a bi-plate zero-order quarter retarder(633 nm)can be obtained with high accuracy in a broadband wavelength range by taking spectra at only three independent angular orientations of the retarder.The calibration results excellently agree with theoretical models,indicating the new method could be used as a simple and reliable way for efficient self-spectral-calibration of optical zero-order retarders. |
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| Keywords: | 120.2130 120.3940 300.6170 |
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