When last we saw [xoreaxeax], he had built a lens-less optical microscope that deduced the structure of a sample by recording the diffraction patterns formed by shining a laser beam through it. At the ...

A programmable LED array provides multi-angle plane-wave illumination, and the transmitted light is collected by microscopic optics and recorded on a camera sensor for subsequent computational ...

Non-destructive and accurate characterization of high aspect ratio (HAR) and composite micro-trenches is essential for semiconductor inspection in fields like microelectromechanical systems (MEMS) and ...

Fourier transforms made simple for curious minds Fourier transforms turn complex signals into their frequency components, revealing hidden patterns and simplifying analysis. From classic signal ...

A key algorithm that quietly empowers and simplifies our electronics is the Fourier transform, which turns the graph of a signal varying in time into a graph that describes it in terms of its ...