Accession Number : AD0752445

Title :   Nonlinear Electrooptic Q-Switch Materials.

Descriptive Note : Final rept. 1 Aug 71-30 Jul 72,

Corporate Author : SPERRY RAND RESEARCH CENTER SUDBURY MASS

Personal Author(s) : Kestigian,Michael ; Bekebrede,Wilfred R. ; Thaxter,J. Bruce

Report Date : JUL 1972

Pagination or Media Count : 79

Abstract : NZE, CZOCHRALSKI METHODThe objective of this program was to obtain a new electrooptic material suitable for Q-switching of visible and near infrared radiation at low repetition rates. The compounds KBa5Nb9ZrO30 and Ba2LaLiNa2Nb10O30 were observed to exhibit the tetragonal tungsten bronze structure. Barium strontium niobate in which the zirconium cation was isomorphously substituted for a portion of the niobium cation was also prepared. Tungsten bronze compounds were formulated and prepared of compositions KSr5TiNb9O30, La3Li3Nb8Zr2O30 and (Ba, Sr)Nb2O6 - BaLiNb5O15. Single crystal growth studies were carried out by use of the direct-melt Czochralski technique. Ba2LaLiNa2Nb10O30, Ba(1-x)Sr(x)Nb2O6b where 0.25 < or = x < or = 0.75, (Ba, Sr)Nb2O6 - Ba2LiNb5O15, Zr-doped (Ba, Sr)Nb2O6 and KBa5Nb9Zro30 single crystals were grown. Samples of dimensions and perfection for electrooptic evaluation studies were prepared in single crystalline form. Electrooptic, optical damage and dielectric studies of these new tungsten bronze structural type single crystals were performed and are described. (Author)

Descriptors :   (*CRYSTAL GROWTH, NIOBATES), (*ELECTROOPTICS, CRYSTAL GROWTH), SINGLE CRYSTALS, BARIUM COMPOUNDS, STRONTIUM COMPOUNDS, COHERENT RADIATION, DAMAGE, RADIATION EFFECTS, LASERS, INFRARED LASERS, OPTICAL MATERIALS, NONLINEAR SYSTEMS, POTASSIUM COMPOUNDS, ZIRCONIUM COMPOUNDS, LANTHANUM COMPOUNDS, LITHIUM COMPOUNDS, SODIUM COMPOUNDS, TITANIUM COMPOUNDS, ZIRCONATES

Subject Categories : Crystallography
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE