Optical spectroscopy of the Ho-doped glasses with 3CaO–Ga2O3–3GeO2 composition

• Autorzy: Padlyak B. V. , Kukliński B. , Buchynskii P. P.
• Konferencja: 6th Seminar Porous Glasses-Special Glasses, PGL 2002, Szklarska Poręba, 22-26.IX.2002 r.
• Języki publikacji: EN

Abstrakty

EN

The UV and visible optical spectra (absorption, emission and luminescence excitation) of the Ho-doped CaO–Ga2O3–GeO2 glasses at room and liquid nitrogen temperatures have been investigated for the first time. The Ho-doped (CHo = 0.7 wt%) glass samples with garnet Ca3Ga2Ge3O12 (or 3CaO–Ga2O3–3GeO2) composition were prepared by the conventional high -temperature synthesis technique. By optical and EPR spectroscopy it has been shown that the holmium impurity is incorporated into the glass network as Ho3+ (4f10, 5I8) ions, exclusively. All transitions of the Ho3+ ions observed in optical spectra of Ho-doped 3CaO–Ga2O3–3GeO2 glasses are identified. The Ho3+ optical absorption spectrum has been analyzed and described in the framework of Judd–Ofelt theory. Optical absorption and emission spectra of the Ho3+ ions in the 3CaO–Ga2O3–3GeO2 glasses are quite similar to Ho3+ optical spectra in other oxide glasses and are characterized by statistical distribution of the local crystal field parameters. Incorporation peculiarities and spectroscopic properties of Ho3+ impurity ions in the glasses of CaO–Ga2O3– GeO2 system are discussed.

Słowa kluczowe

EN

CaO–Ga2O3–GeO2 glass; Ho3+ ion; optical absorption; luminescence; inhomogeneous broadening

PL

luminescencja

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2003
• Tom: Vol. 33, nr 1
• Strony: 175--181
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Padlyak B. V.

• Department of Physics, Kazimierz Wielki Academy of Bydgoszcz, pl. Weyssenhoffa 11, 85-072 Bydgoszcz, Poland

autor

Kukliński B.

• Institute of Experimental Physics, University o f Gdańsk, ul. Wita Stwosza 57, 80-952 Gdańsk, Poland

autor

Buchynskii P. P.

• Lviv Institute of Materials, SRC “Carat”, Stryjska Str. 202, 79-031 Lviv, Ukraine

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