Multiphonon Relaxation Phenomenon in Heavy Metal Oxide Glasses Doped with Rare-Earths

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J. Korean Ceram. Soc. > Volume 35(4); 1998 > Article

Journal of the Korean Ceramic Society 1998;35(4): 392.

중금속 산화물 유리내 희토류 원소의 Multiphonon Relaxation 현상

최용규, 허종

포항공과대학교 재료금속공학과 및 환경공학부 비정질무기재료연구실

Multiphonon Relaxation Phenomenon in Heavy Metal Oxide Glasses Doped with Rare-Earths

ABSTRACT

ernary PbO-{{{{ {Bi }_{2 } {O}_{2 } }}-{{{{ {Ga }_{2 } {O}_{3 } }} glasses doped with various rare-earths were prepared and multiphono re-laxation phenomenon associated with an intra-4f-configurational transition was investigated. Phenomeno-logical multiphnon relaxation rates of heavy metal oxide glasses in the PbO-{{{{ {Bi }_{2 } {O}_{2 } }}-{{{{ {Ga }_{2 } {O}_{3 } }} system were the lowest among oxide glasses and comparable to that of fluoride glasses. As a result fluorescent emissions in the mid-infrared and 1.3 $mutextrm{m}$ wavelengths which are quenched in oxide glasses became evident

Key words: Heavy metal oxide glass, Rare-earths, Multiphonon relaxation, Judd-Ofelt analysis, Fluorescence