Optical cavity apparatus. Optical cavities are used in lasers, interferometers and atomic clocks. This is a rigidly mounted optical cavity designed to be insensitive to inertial forces. The design is based on a cubic geometry (centre) with four supports placed symmetrically about the optical axis in a tetrahedral configuration. Photographed at the National Physical Laboratory, in Teddington, UK.
Model release not required. Property release not required.