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 …

Evolving from metamaterials, optical metasurfaces not only inherit their unprecedented
flexibility in tailoring light–matter interaction but also the generally fixed response …

Presents readers with the basic science, technology, and applications for every type of
adaptive lens An adaptive lens is a lens whose shape has been changed to a different focal …

Structural colors refer to colors produced by the interference of light scattered by judiciously
arranged nano-or microscopic structures. In this Forum Article, we discuss the use of Mie …

Electrically tunable focusing liquid crystal (LC) lenses are reviewed in this paper. The
distribution of the orientations of LC directors which is controlled by electric fields results in a …

High performance imaging in parallel cameras is a worldwide challenge in computational
optics studies. However, the existing solutions are suffering from a fundamental …

We report a zoom microscope objective which can achieve continuous zoom change and
correct the aberrations dynamically. The objective consists of three electrowetting liquid …

Electrically tunable liquid crystal microlenses have attracted strong research attention due to
their advantages of tunable focusing, voltage actuation, low power consumption, simple …

Conventional endoscopic systems consisting of several solid lenses suffer from a fixed and
limited depth-of-field (DOF). For practical applications, conventional endoscopes …

Extending the depth of field (DOF) is especially essential in thick and 3D sample imaging.
However, it's difficult to achieve both large DOF and high resolution in a zoom microscope …