Superoscillatory quartz lens with effective numerical aperture greater than one

• Main Authors: Yuan, Guanghui, Lin, Y.-H., Tsai, D. P., Zheludev, Nikolay I.
• 其他作者: School of Physical and Mathematical Sciences
• 格式: Article
• 語言: English
• 出版: 2020
• 主題: Science::Physics; Quartz Lens; Effective Numerical Aperture
• 在線閱讀: https://hdl.handle.net/10356/144296

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...