Metalenses consist of an array of optical nanoantennas on a surface capable of
manipulating the properties of an incoming light wavefront. Various flat optical components …

A key goal of metalens research is to achieve wavefront shaping of light using optical
elements with thicknesses on the order of the wavelength. Such miniaturization is expected …

In this Letter, we experimentally report an achromatic metalens (AML) operating over a
continuous bandwidth in the visible. This is accomplished via dispersion engineering of …

The ongoing effort to implement compact and cheap optical systems is the main driving force
for the recent flourishing research in the field of optical metalenses. Metalenses are a type of …

Optical metalens has been attracting more and more attention in recent years. To date, it is
still difficult to simultaneously achieve wide field and broadband imaging in the visible …

Over the past years, broadband achromatic metalenses have been intensively studied due
to their great potential for applications in consumer and industry products. Even though …

We design and fabricate ultra-broadband achromatic metalenses operating from the visible
into the short-wave infrared, 450–1700 nm, with diffraction-limited performance. A hybrid 3D …

Midinfrared devices based on metalenses are of great utility for numerous applications,
including free-space communication, imaging, and molecule sensing. However, because of …

Chromatic aberration is a major challenge faced by metalenses. Current methods to achieve
broadband achromatic operation in metalenses usually suffer from limited size, numerical …

Metalenses, ultra-thin optical elements that focus light using subwavelength structures, have
been the subject of a number of recent investigations. Compared to their refractive …