title: Temperature dependence of the refractive index of alkaline earth fluorides.
abstract: The temperature coefficient of the refractive index dn/dT of CaF(2), SrF(2), and BaF(2) single crystals is measured by a laser interferometric technique at a number of frequencies over temperatures ranging from 20 degrees C to 85 degrees C. Although dn/dT is found to display little dispersion between 0.6328 microm and 3.39 mum, its magnitude shows a slight increase with temperature. A possible origin of the latter effect is discussed.
authors.forename: H G
authors.initials: HG
authors.lastname: Lipson
authors.forename: Y F
authors.initials: YF
authors.lastname: Tsay
authors.forename: B
authors.initials: B
authors.lastname: Bendow
authors.forename: P A
authors.initials: PA
authors.lastname: Ligor