Planar super-oscillatory lens for sub-diffraction optical needles at violet wavelengths

• Main Authors: Yuan, Guanghui, Rogers, Edward T. F., Roy, Tapashree, Adamo, Giorgio, Shen, Zexiang, Zheludev, Nikolay I.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Science::Physics::Optics and light
• Online Access: https://hdl.handle.net/10356/106870; http://hdl.handle.net/10220/25235
• Institution: Nanyang Technological University

Planar optical lenses are fundamental elements of miniaturized photonic devices. However, conventional planar optical lenses are constrained by the diffraction limit in the optical far-field due to the band-limited wavevectors supported by free-space and loss of high-spatial-frequency evanescent com...