Point spread function of the optical needle super-oscillatory lens

• Main Authors: Rogers, Edward T. F., Zheludev, Nikolay I., Roy, Tapashree, Yuan, Guanghui
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Physics::Optics and light
• Online Access: https://hdl.handle.net/10356/103894; http://hdl.handle.net/10220/20033
• Institution: Nanyang Technological University

Super-oscillatory optical lenses are known to achieve sub-wavelength focusing. In this paper, we analyse the imaging capabilities of a super-oscillatory lens by studying its point spread function. We experimentally demonstrate that a super-oscillatory lens can generate a point spread function 24% sm...