Lenses with tunable focal length play important roles in nature by helping species avoid
predators and capture prey. Many practical devices mimic lens concept for imaging, sensing …

An adaptive-focus lens is a device that is capable of tuning its focal length by means of an
external stimulus. Numerous techniques for the demonstration of such devices have been …

Overcoming chromatic aberrations is a vital concern in imaging systems in order to facilitate
full-color and hyperspectral imaging. By contrast, large dispersion holds opportunities for …

The advent of spatial control over the phase and amplitude of light waves has profoundly
transformed photonics, enabling major advances in fields from imaging and information …

A transparent variable diffractive spiral axicon (DSA) based on a single LC cell is presented.
The manufactured DSA can be switched between 24 different configurations, 12 convergent …

This work presents the application of an experimental nematic liquid crystal (LC) mixture
(1929) in a large aperture lens. The LC material is composed of terphenyl and biphenyl …

This paper presents the simulated performance assessment of an artificial iris embedded on
a scleral contact lens using real data from an aniridia patient. The artificial iris is based on …

Liquid crystals are valuable materials for applications in beam steering devices. In this
paper, an overview of the use of liquid crystals in the field of adaptive optics specifically for …

The design and operational principle of a new electrically tunable gradient index liquid
crystal lens are described. The approach is based on linear serpentine electrodes and does …

We propose and demonstrate an active spin-selected lens with liquid crystal (LC) in the
terahertz (THz) range. The lens is a superposition of two geometric phase lenses with …