Gravitational wave detectors like LIGO (Laser Interferometer Gravitational-Wave Observatory) and VIRGO use laser interferometry to measure the minute disturbances caused by passing gravitational waves. The detectors must be incredibly sensitive to detect the minute changes in distance (on the order of 10-18 meters) caused by these waves. To achieve this, they rely on cutting-edge technologies, including advanced nanofabrication techniques to create ultra-precise mirrors and other components.
