Toward practical weak measurement wavefront sensing: spatial resolution and achromatism
| Autor: | Zheng, Yi, Yang, Mu, Liu, Zheng-Hao, Xu, Jin-Shi, Li, Chuan-Feng, Guo, Guang-Can |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Opt. Lett. 47, 2734-2737 (2022) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1364/OL.460873 |
| Popis: | The weak measurement wavefront sensor detects the phase gradient of light like the Shack-Hartmann sensor does. However, the use of one thin birefringent crystal to displace light beams results in a wavelength-dependent phase difference between the two polarization components, which limits the practical application. Using a Savart plate which consists of two such crystals can compensate for the phase difference and realize achromatic wavefront sensing when combined with an achromatic retarder. We discuss the spatial resolution of the sensor and experimentally reconstruct a wavefront modulated by a pattern. Then we obtain the Zernike coefficients with three different wavelengths before and after modulation. Our work makes this new wavefront sensor more applicable to actual tasks like biomedical imaging. Comment: 4 pages, 4 figures. \copyright 2022 Optica Publishing Group. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved |
| Databáze: | arXiv |
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