Harvard College

Vyshakh Sanjeev

Federico Capasso

Mohammadreza Khorasaninejad

Alexander Yutong Zhu

Zhujun Shi

Wei Ting Chen

Wei-Ting Chen

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.

Immersion meta-lens at visible wavelengths for diffraction-limited imaging

An optical device includes a substrate, a reflective layer disposed over the substrate, and a metalens disposed over the reflective layer. The metalens includes a plurality of nanopillars, the plurality of nanopillars together specifying a phase profile such that the metalens has a focal length that is substantially constant over a wavelength range of an incident light of about 490 nm to about 550 nm.

Achromatic metalens and metalens with reverse chromatic dispersion

Growing community of inventors

Cambridge, MA, United States of America

Vyshakh Sanjeev