This Collection welcomes original research articles on flat optics, with a focus on the design, fabrication, and characterisation of planar optical elements. It also highlights emerging applications ...

A research team has developed a novel multidimensional sampling theory to overcome the limitations of flat optics. The study not only identifies the constraints of conventional sampling theories in ...

An unexpected discovery in a Harvard lab has led to a breakthrough insight into choosing an unconventional material, silica, to make optical metasurfaces—ultra-thin, flat structures that control light ...

Scanning electron microscopy image of a silica metasurface fabricated at University of Lisbon, with no visible imperfections and tall, cylindrical nanopillars. Harvard SEAS researchers have found that ...

This paper covers a discussion of the Abbe Sine Condition and its implication for Flat Optics, including the effects of stop shift and substrate curvature. Following that, we apply Sweatt’s high index ...

(Nanowerk Spotlight) Quantum light sources are a fundamental building block for many quantum technologies, enabling secure communication, powerful computing, and precise sensing and imaging.

An unexpected discovery in a Harvard lab has led to a breakthrough insight into choosing an unconventional material, silica, to make optical metasurfaces – ultra-thin, flat structures that control ...

In a recent article published in the journal Nature Communications, researchers demonstrated a large-aperture, broadband meta-optic capable of high-quality visible imaging, overcoming traditional ...