Cornell researchers have built a programmable optical chip that can change the color of light by merging photons, without requiring a new chip for new colors.

Abstract: This Waveguides transport high-frequency microwave signals efficiently with no major loss in signal power. A waveguide with a circular/rectangular cross-section operates on different ...

Abstract: This paper presents the characteristic mode theory method to solve the aperture problem for a cylindrical conducting guide coupled to open half space through a rectangular aperture. The ...