Adaptive optics (AO) is a technique that corrects for optical aberrations. It was originally
proposed to correct for the blurring effect of atmospheric turbulence on images in ground …

Complex and inhomogeneous media are ubiquitous around us. Snow, fog, biological
tissues and turbid water—even just a piece of frosted glass—are opaque to light due to …

We present a new class of wavefront sensors by extending their design space based on
machine learning. This approach simplifies both the optical hardware and image processing …

We demonstrate a versatile thin lensless camera with a designed phase-mask placed at sub-
2 mm from an imaging CMOS sensor. Using wave optics and phase retrieval methods, we …

Minimally invasive endoscopes are indispensable in biomedicine. Coherent fiber bundles
(CFBs) enable ultrathin lensless endoscopes. However, the propagation of light through a …

For photonic devices, structural disorder and light scattering have long been considered
annoying and detrimental features that were best avoided or minimized. This review shows …

We present an on-chip, widefield fluorescence microscope, which consists of a diffuser
placed a few millimeters away from a traditional image sensor. The diffuser replaces the …

Common cameras are only sensitive to the intensity of light, discarding an essential feature
of a light wave: its phase profile or, equivalently, its wavefront profile. This Review focuses …

In recent years, rapid developments in imaging concepts and computational methods have
given rise to a new generation of imaging technologies based on chaos. These chaos …

Quadriwave lateral shearing interferometry (QLSI) is a quantitative phase imaging technique
based on the use of a diffraction grating placed in front of a camera. This grating creates a …