Superoscillatory quartz lens with effective numerical aperture greater than one

• Main Authors: Yuan, Guanghui, Lin, Y.-H., Tsai, D. P., Zheludev, Nikolay I.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2020
• Subjects: Science::Physics; Quartz Lens; Effective Numerical Aperture
• Online Access: https://hdl.handle.net/10356/144296
• Institution: Nanyang Technological University

We report super-resolution high-numerical-aperture and long-working-distance superoscillatory quartz lenses for focusing and imaging applications. At the wavelength of λ = 633 nm, the lenses have an effective numerical aperture of 1.25, a working distance of 200 μm, and a focus into a hotspot of 0.4...