| DTU researchers have invented a nanolaser constructed in a semiconductor membrane that causes electrons and light to gather in a small area (blue shadow). By using light instead of electrical signals on microchips, data speed can be increased and energy loss reduced. The schematic of the nanolaser based on extreme dielectric confinement, shows an extreme dielectric confinement (EDC) laser under optical pumping with a focused Gaussian beam (red light), generating a region (blue shading) where excited carriers are concentrated and leading to enhanced spatial overlap with the optical cavity field (bright dot). Illustration: Yi Yu / DTU. |
