Gravitational Wave Group
Investigation of the Sapphire Property
(Thermal Conductivity, Thermal Expansion Ratio, Refractive Index Fluctuation)
Merit of Saphire for Cryogenics
Sapphire at cryogenic temperature is estimated to be a possible solution for the
thermal lensing which is expected in the future laser interferometer consuming
high power inside from the point of view of high thermal conductivity, low thermal expansion ratio
and low refractive Index fluctuation.