15 October 2012 Design of superresolving continuous phase filter with radially polarized light beam
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Proceedings Volume 8420, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical System Technologies for Manufacturing and Testing; 84200Q (2012) https://doi.org/10.1117/12.977934
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China
Abstract
In the researching field of optical superresolution, a phase or amplitude filter is often utilized. They are easy to build, and simple to insert to a system. A new idea on design a continuous phase filer is proposed. This type of filter is based on the law that the focal size is mainly decided by the marginal rays in the aperture. A quadric function consisted of tangent value is built. Assuming that the radially polarized light incident, passing through a phase filer and being focused by a lens, the intensity distribution on the focal plane is simulated. The vector diffraction theory is used here. To get a smaller focus, the parameters in the phase function are optimized in Matlab. The results show the superresolution effects. Compared with others, the filters maintain higher energy utilization rate. A good prospects for application can be expected.
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Huifang Chen, Yueming Liu, Tao Liu, "Design of superresolving continuous phase filter with radially polarized light beam", Proc. SPIE 8420, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical System Technologies for Manufacturing and Testing, 84200Q (15 October 2012); doi: 10.1117/12.977934; https://doi.org/10.1117/12.977934
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