WASHINGTON, D.C., Sept. 19, 2017 -- Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a ...
Scanning electron micrograph of a polymeric WGM split-disk cavity: Two opposing half-disks (R=25μm) with an intermediate air gap of several microns are structured onto an elastomeric PDMS substrate ...