Every critter on this planet that relies on a sexual means of reproduction has its own way of luring in a mate – but ...

Making a perfect lens that produces flawless images has been a dream of lens makers for centuries. In 1873, Ernst Abbe discovered a fundamental 'diffraction limit' in optics: whenever an object is ...

Mid- and far-infrared birefringent crystals are key functional materials for polarization control, laser technologies, and ...

When most of us look out at the ocean, we see a mostly flat blue surface stretching to the horizon. It’s easy to imagine the ...

Mathematicians are still trying to understand fundamental properties of the Fourier transform, one of their most ubiquitous ...