Optical investigation of Eu/sup 3+/ and Tm/sup 3+/ in the Ca/sub 4/GdO(BO/sub 3/)/sub 3/ (GdCOB) crystal

Author

Dominiak-Dzik, G. ; Ryba-Romanowski, W. ; Golab, S. ; Pajaczkowska, A.

Author_Institution

Inst. for Low Temp. & Struct. Res., Polish Acad. of Sci., Wroclaw, Poland

fYear

2000

fDate

10-15 Sept. 2000

Abstract

Summary form only given. Previous literature demonstrates that neodymium doped Ca/sub 4/GdO(BO/sub 3/)/sub 3/ crystals combines advantageously nonlinear optical properties with an ability to amplify the light and is of interest as a self-frequency doubling material. Ca/sub 4/GdO(BO/sub 3/)/sub 3/ crystals doped with Eu/sup 3+/ and Tm/sup 3+/ are investigated to get more detailed knowledge on number of activator crystal-fields sites and processes contributing to the relaxation of rare earth ions in this matrix. It has been found that multiphonon relaxation plays a dominant role in the relaxation of excited states of Tm/sup 3+/ ions.

Keywords

calcium compounds; crystal field interactions; europium; excited states; fluorescence; optical materials; phonon-phonon interactions; thulium; Ca/sub 4/GdO(BO/sub 3/)/sub 3/ crystals; Ca/sub 4/GdO(BO/sub 3/)/sub 3/:Eu,Tm; Ca/sub 4/GdO(BO/sub 3/)/sub 3/:Eu/sup 3+/,Tm/sup 3+/; Ca/sub 4/GdO(BO/sub 3/)/sub 3/:Nd; activator crystal-fields; excited states; multiphonon relaxation; nonlinear optical properties; rare earth ions; self-frequency doubling material; Crystalline materials; Crystals; Earth; Luminescence; Neodymium; Nonlinear optics; Optical materials; Polarization;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe, 2000. Conference Digest. 2000 Conference on

Conference_Location

Nice

Print_ISBN

0-7803-6319-1

Type

conf

DOI

10.1109/CLEOE.2000.910036

Filename

910036