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1. (WO2018183774) IMMERSION META-LENS AT VISIBLE WAVELENGTHS FOR DIFFRACTION-LIMITED IMAGING

Pub. No.:    WO/2018/183774    International Application No.:    PCT/US2018/025294
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 30 01:59:59 CEST 2018
IPC: B82Y 20/00
G02B 1/00
Applicants: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
Inventors: CHEN, Wei Ting
ZHU, Alexander Yutong
KHORASANINEJAD, Mohammadreza
SHI, Zhujun
SANJEEV, Vyshakh
CAPASSO, Federico
Title: IMMERSION META-LENS AT VISIBLE WAVELENGTHS FOR DIFFRACTION-LIMITED IMAGING
Abstract:
An optical imaging apparatus is disclosed. The optical imaging apparatus includes a metasurface lens including a substrate and a plurality of nano-structures patterned on a first side of the substrate. The optical imaging apparatus further includes imaging optics disposed in a spaced apart relationship with a second side of the substrate. The second side is opposite the first side on which the nano-structures are patterned. A surface of the imaging optics and the second side of the substrate define a space for accommodating an immersion fluid. The metasurface lens is configured to direct light incident on the plurality of nano-structures towards the imaging optics through the space accommodating the immersion fluid.