Practical superoscillation element design for far field non-scanning superresolution imaging

Qingkun Xie; Yanru Jiang; Enshi Qu; Liyong Ren

doi:10.1117/12.2506724

24 January 2019 Practical superoscillation element design for far field non-scanning superresolution imaging

Qingkun Xie, Yanru Jiang, Enshi Qu, Liyong Ren

Proceedings Volume 10840, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics; 108400A (2019) https://doi.org/10.1117/12.2506724
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

Superoscillation is a promising method to realize superresolution imaging. Nevertheless, in the point spread function (PSF) of previous superoscillation imaging systems, compared to the several orders of magnitude higher intensity in side-lobes, the extremely small intensity in the focal-spot is a severe constraint for practical applications. In this paper, we creatively segment the conventional superoscillation lens into two simple-fabrication portions to generate the superoscillation optical field and realize superresolution imaging in a local field of view (LFOV). We then analyze the contribution of different portions of the entrance pupil to the system’s resolution and propose a novel superoscillation element (NSOE) design to effectively reduce the intensity of side-lobes. We end by reporting our recent results on the imaging of complex targets, and the validity and potential applications of superresolution imaging is well demonstrated.

Citation Download Citation

Qingkun Xie, Yanru Jiang, Enshi Qu, and Liyong Ren "Practical superoscillation element design for far field non-scanning superresolution imaging", Proc. SPIE 10840, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics, 108400A (24 January 2019); https://doi.org/10.1117/12.2506724

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