Non‐Gaussian beam profiles such as Bessel or annular beams enable novel approaches to
modifying materials through laser‐based processing. In this review paper, properties …

Tunable liquid lenses with controllable focal length attract much attention from many
researchers due to the unique advantages of strong adjustability, low power consumption …

Existing auto-focusing methods in laser processing typically include two independent
modules, one for surface detection and another for z-axis adjustment. The latter is mostly …

Fluidic lenses allow for varifocal optical elements, but current approaches are limited by the
speed at which focal length can be changed. Here we demonstrate the use of a tunable …

We demonstrate in situ non-invasive relay imaging through a medium without inserting
physical optical components. We show that a virtual optical graded-index (GRIN) lens can …

Optical imaging and stimulation are widely used to study biological events. However,
scattering processes limit the depth to which externally focused light can penetrate tissue …

Light-sheet microscopes have become the tool of choice for volumetric imaging of large
samples. Based on a wide-field acquisition scheme, they are capable of optical sectioning at …

We describe a simple setup that allows depth of field switching at kilohertz rates in a
nonlinear microscope. Beam profile and/or divergence are modulated using a tunable …

In the recent past, the field of optofluidics has thrived from the immense efforts of researchers
from diverse communities. The concept of optofluidics combines optics and microfluidics to …

Three‐dimensional imaging at high‐spatiotemporal resolutions and over large penetration
depths is key for unmasking the dynamics and structural organization of complex biological …