Atom diffraction had so far been seen in reflection. The atoms were bounced off a surface that was etched to have a grating. The lines don’t need to be as thin as 10,000 times smaller than a ...
The story begins several decades ago, in 1927, when physicist George Paget Thomson revealed that electrons, when passed through a crystal grating, produce a diffraction pattern—a hallmark of ...
A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society ...
The emergence of imaging schemes capable of overcoming Abbe's diffraction barrier is revolutionizing optical microscopy. In 1873, the German physicist Ernst Abbe realized that the resolution of ...
Using high-resolution digital imaging technology based on diffraction optics that disperse ... with the wavelengths dispersed by a diffractive grating onto a 2D focal-plane array (FPA), such ...
You can see these colors by passing white light through a diffraction grating so that different wavelengths bend different amounts. Here's what that looks like: There you have a nice spectrum of ...
Abstract: We propose and validate a new approach for low-back-reflection and high-efficiency silicon waveguide grating couplers (GC) with a fully etched structure. Enhanced coupling efficiency is ...