title: Athermal glass for the infrared.
abstract: Refractive indices of four CLAP glass systems are measured at room temperature and at higher temperatures in the wavelength range of 0.4-5.5 microm. The coefficients of temperature changes of optical path lengths are calculated and are <1 x 10(-6)/ degrees C in the wavelength range longer than 1microm. This suggests an athermal glass application in the infrared ray region.
authors.forename: S
authors.initials: S
authors.lastname: Mitachi
authors.forename: P A
authors.initials: PA
authors.lastname: Tick