Photoluminescent changes of Eu3+ in ZnO-SiO2 glasses induced by femtosecond laser

被引：3

作者：

Yu, Lixin ^{[1
]}

Nogami, Masayuki ^{[1
]}

机构：

[1] Nagoya Inst Technol, Dept Mat Sci & Engn, Showa Nagoya, Aichi 4668555, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 462卷 / 1-2期

关键词：

optical materials; luminescence; sol-gel processes;

D O I：

10.1016/j.jallcom.2007.07.106

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The photoluminescent characteristics of Eu3+ ions in 10ZnO-90SiO(2) glasses before and after femtosecond (fs) laser irradiation were systematically compared and investigated. The results indicated that the absorption of charge transfer (CT) decreased and F-7(0)-F-7(6) transition of Eu3+ ions increased in irradiated glasses. According to emission spectra, relative intensity of D-5(0)-F-7(0) To transition and the intensity ratio of D-5(0)-F-7(2)/D-5(0)-F-7(1) transitions of Eu3+ in irradiated glasses evidently increased due to the changes of local structures around Eu3+. The dynamic processes indicated that the transition probability of electric dipole transitions of Eu3+ ions hardly changed before and after irradiation. The F-7(0)-D-5(0) excitation lines blue shifted after irradiation, implying that the structure changes induced by fs laser irradiation took place. The efficiency of persistent spectral hole-burning (PSHB) of Eu3+ ions in irradiated glasses remarkably increased in comparison with not irradiated glass. The fluorescence line narrow (FLN) spectra indicated that the microstructures changes surrounding Eu3+ ions induced by fs laser were observed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：187 / 191

页数：5

共 22 条

[1] On BaMgAl10O17 :: Eu2+ phosphor degradation mechanism:: thermal treatment effects [J].

Bizarri, G ;

Moine, B .

JOURNAL OF LUMINESCENCE, 2005, 113 (3-4) :199-213

[2] LASER-INDUCED LINE-NARROWING OF EU-3(+) FLUORESCENCE IN FLUOROBERYLLATE GLASS - SITE-DEPENDENT SPECTROSCOPIC PROPERTIES AND THEIR STRUCTURAL IMPLICATIONS [J].

BRECHER, C ;

RISEBERG, LA .

PHYSICAL REVIEW B, 1980, 21 (06) :2607-2618

[3] Ultrashort-laser-pulse-induced persistent spectral hole burning of Eu3+ in sodium borate glasses [J].

Fujita, K ;

Nishi, M ;

Hirao, K .

OPTICS LETTERS, 2001, 26 (21) :1681-1683

[4] OPTICAL ABSORPTION INTENSITIES OF RARE-EARTH IONS [J].

JUDD, BR .

PHYSICAL REVIEW, 1962, 127 (03) :750-&

[5] Multiphoton reduction of Eu3+ to Eu2+ in methanol using intense, short pulses from a Ti:Sapphire laser [J].

Nakashima, N ;

Nakamura, S ;

Sakabe, S ;

Schillinger, H ;

Hamanaka, Y ;

Yamanaka, C ;

Kusaba, M ;

Ishihara, N ;

Izawa, Y .

JOURNAL OF PHYSICAL CHEMISTRY A, 1999, 103 (20) :3910-3916

[6] LOCAL FIELD IN GLASS PROBED BY LASER-INDUCED FLUORESCENCE-LINE NARROWING IN CA(PO3)2-EU3+ [J].

NISHIMURA, G ;

KUSHIDA, T .

PHYSICAL REVIEW B, 1988, 37 (15) :9075-9078

[7] Laser-induced SnO2 crystallization and fluorescence properties in Eu3+-doped SnO2-SiO2 glasses -: art. no. 104204 [J].

Nogami, M ;

Ohno, A ;

You, HP .

PHYSICAL REVIEW B, 2003, 68 (10)

[8] Enhanced fluorescence of Eu3+ induced by energy transfer from nanosized SnO2 crystals in glass [J].

Nogami, M ;

Enomoto, T ;

Hayakawa, T .

JOURNAL OF LUMINESCENCE, 2002, 97 (3-4) :147-152

[9] Room-temperature persistent spectral hole burning of Eu3+ coupling with Al3+ in glass -: art. no. 104205 [J].

Nogami, M ;

Ishikawa, T .

PHYSICAL REVIEW B, 2001, 63 (10) :6

[10] INTENSITIES OF CRYSTAL SPECTRA OF RARE-EARTH IONS [J].

OFELT, GS .

JOURNAL OF CHEMICAL PHYSICS, 1962, 37 (03) :511-&

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