title: Thermal Coefficients of the Optical Path Length and Refractive Index in YAG.
abstract: The changes in optical path length and refractive index with temperature are measured at 633 nm in undoped YAG in the 85-285 K temperature range. At 100 K the change in optical path length with temperature is only ~25% of its value at 300 K; the change of refractive index with temperature is also substantially reduced at low temperatures.
authors.forename: T Y
authors.initials: TY
authors.lastname: Fan
authors.forename: J L
authors.initials: JL
authors.lastname: Daneu