Accession Number : ADA019774


Title :   Low Loss Window Materials for Chemical Lasers


Descriptive Note : Final technical rept. 9 Jan 1974-9 Nov 1975


Corporate Author : ALABAMA UNIV IN HUNTSVILLE DEPT OF PHYSICS


Personal Author(s) : Harrington, James A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a019774.pdf


Report Date : Nov 1975


Pagination or Media Count : 15


Abstract : The increasing interest and importance of chemical lasers has led to a demand for materials studies at DF and HF chemical laser frequencies. The primary objective of this research program has been to investigate the optical absorption in a wide variety of low loss materials suitable for use as windows on high-powered chemical lasers. In order to accomplish this objective, the small optical absorption in a number of different state-of-the-art samples was measured using DF-HF chemical laser calorimetric techniques. These measurements, combined with a correlative study of surface absorption, have been compiled in order to bring together in a systematic fashion all the absorption data accumulated during the contract period. Such a compilation of data enables one to easily identify those materials which, up to the present time, hold the greatest promise, in terms of service and reliability, as chemical laser windows.


Descriptors :   *INFRARED LASERS , *CHEMICAL LASERS , *LASER MATERIALS , OPTICAL PROPERTIES , SINGLE CRYSTALS , HYDROGEN FLUORIDE , ALKALINE EARTH COMPOUNDS , LOSSES , SEMICONDUCTORS


Subject Categories : Lasers and Masers


Distribution Statement : APPROVED FOR PUBLIC RELEASE