Polarization Fizeau interferometer based on birefringent thin film |
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| Authors: | Linglin Zhu Aijun Zeng Fanyue Li and Huijie Huang |
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| Affiliation: | 1Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China 2Graduate University of Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | A polarization Fizeau interferometer based on birefringent thin film is presented.The interferometer adopts a birefringent thin film to obtain orthogonally polarized and strictly common-path reference and test beams.Advantages include ease of implementation on large-aperture interferometer,measuring test optics from long distance,and achieving high fringe visibility.The phase shift is obtained by combining a quarterwave plate and an analyzer.The concepts illustrated are verified experimentally. |
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