Design of superresolving continuous phase filter with radially polarized light beam

Huifang Chen; Yueming Liu; Tao Liu

doi:10.1117/12.977934

15 October 2012 Design of superresolving continuous phase filter with radially polarized light beam

Huifang Chen, Yueming Liu, Tao Liu

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.

Citation Download Citation

Huifang Chen, Yueming Liu, and 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); https://doi.org/10.1117/12.977934

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KEYWORDS

Super resolution

Optical filters

Modulation

Diffraction

Sodium

MATLAB

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