24 October 2017 Dual plane on-axis digital holography with dual wavelength phase unwrapping
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Proceedings Volume 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications; 1046242 (2017) https://doi.org/10.1117/12.2285356
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
Dual plane on-axis digital holography based on LCOS spatial light modulator with the benefits of dual wavelength phase unwrapping method is presented. Computer-generated chirp like complex reflectance were displayed on LCOS spatial light modulator for recording of holograms at two slightly displaced planes for two wavelengths which were later processed to suppress the dc term and twin image in the reconstructed image of each wavelength. The dual wavelength phase unwrapping method is used on the reconstructed wrapped phases of each wavelength to successfully unwrap the surface profile and result is verified by comparing it with measurement made by the optical profiling system.
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Spozmai Panezai, Spozmai Panezai, Jie Zhao, Jie Zhao, Yunxin Wang, Yunxin Wang, Dayong Wang, Dayong Wang, Lu Rong, Lu Rong, } "Dual plane on-axis digital holography with dual wavelength phase unwrapping", Proc. SPIE 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications, 1046242 (24 October 2017); doi: 10.1117/12.2285356; https://doi.org/10.1117/12.2285356
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