Alpha Centauri sits more than four light-years away, close enough to fascinate generations of dreamers and far enough to make ...

From ultrafast photodetectors to multifunctional flat lenses, metasurfaces are redefining how we manipulate light. These nanostructured surfaces pack powerful optical functions into ultra-thin forms, ...

DURING the last visit of the late Dr. E. W. Washburn to Toronto in the latter part of 1933, in an address on the properties of heavy water, he announced that water vapour, when condensed at very low ...

Q: What are diffraction gratings? A diffraction grating is an optical component for spectroscopy that splits light into different wavelengths. A typical diffraction grating has thousands of grooves ...