We’ve seen just about every possible way to make a clock here at Hackaday over the years. So it’s rare to have a first, but ...

Raman microscopy is a key technique when analyzing diverse battery materials, including metal oxides, carbon, and electrolytes.

You've been lied to, modern cameras fake color - This 135-year-old technique does it for real!

First experimental observation of matter-wave diffraction in a short-lived electron-positron atom using a graphene-based diffraction grating. (Nanowerk News) One of the discoveries that fundamentally ...

Abstract: The design principles and measurement results for a compact shallow etched distributed diffraction grating waveguide demultiplexer are presented. The deeply etched diffraction grating facets ...

Using a novel method, beams of laser light can be deflected using air alone. An invisible grating made only of air is not only immune to damage from the laser light, but it also preserves the original ...

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 on a rising ...

Visual demonstration of the performance of the diffraction grating. The zeroth order transmission refers to light that goes straight through the grating without undergoing diffraction (which should be ...

Today, astronomers seek to observe the faintest and most distant objects possible. Extremely Large Telescopes (ELTs), with apertures in the order of several dozen meters, are the next generation ...

For decades, Bragg gratings have been well-known and popular across the world. Optical filtering, interferometers, spectrometers, lasers, waveguiding, optical delay lines and sensors, and dispersion ...

Abstract: Optical fiber diffraction gratings with periodic structure across the fiber section and fabricated by femtosecond laser are proposed and demonstrated. The diffraction patterns can be clearly ...