Intrinsic Defects in Amorphous Optical Coatings of TiO${}_2$-doped GeO${}_2$ for Gravitational-wave Detectors

K. Prasai, K. Lee, R. Bassiri +6

The increased laser power of future gravitational-wave detectors will require mirror coatings with optical absorption below 0.1 ppm per mirror. TiO${}_2$-doped GeO${}_2$, currently the…