Spectroscopic and laser properties of Sm3+ doped different phosphate glasses

被引：92

作者：

Seshadri, M. ^{[1
]}

Rao, K. Venkata ^{[1
]}

Rao, J. L. ^{[2
]}

Ratnakarama, Y. C. ^{[1
]}

机构：

[1] SV Univ, Dept Phys, Post Grad Ctr, Kavali 524201, AP, India

[2] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 476卷 / 1-2期

关键词：

Phosphate glass; Sm3+; Absorption; Luminescence; TRIVALENT LANTHANIDE IONS; OPTICAL-ABSORPTION; ER3+ IONS; ND3+; TRANSITIONS; INTENSITIES; SPECTRA; OXIDE; DY3+; PR3+;

D O I：

10.1016/j.jallcom.2008.09.033

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：

Optical absorption and photoluminescence spectra of Sm3+ ions in alkali phosphate (P2O5-Na2HPO4-R2O (R=Li, Na and K)), mixed alkali phosphate (P2O5-Na2HPO4-Li2O-R2O (R=Na, K), (P2O5-Na2HPO4-Na2O-K2O) and calcium phosphate (P2O5-Na2HPO4-CaO) glasses doped with 1 mol% of Sm2O3 have been investigated. Judd-Ofelt intensity parameters (Omega(2), Omega(4) and Omega(6)) are obtained using Judd-Ofelt theory, which are inturn used in studying the radiative properties of Sm3+ doped different glass matrices. Absorption cross-sections (Sigma) and branching ratios (beta) of different transitions have been calculated from the absorption spectra. The emission spectra of Sm3+ have been recorded under the excitation wavelength 400.0 nm for all the glass matrices. From the emission spectra, emission cross-sections (sigma(p)) and branching ratios (beta) are calculated. From these studies certain transitions have been identified for the suitability of these glasses for laser application. Optical band gaps are also reported for both indirect and direct transitions of all these Sm3+ doped glass matrices. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：263 / 270

页数：8

共 30 条

[21] Mixed alkali effect in borate glasses-optical absorption studies in Ho3+ doped x(Na2O)•(30-x)(K2O)•70(B2O3) glasses [J].

Ratnakaram, YC ;

Chakradhar, RPS ;

Ramesh, KP ;

Rao, JL ;

Ramakrishna, J .

JOURNAL OF MATERIALS SCIENCE, 2003, 38 (04) :833-841

[22]

Reisfeld R., 1977, LASERS EXCITED STATE

[23]

Reisfeld R., 1975, Strucutre and Bonding, V22, P123, DOI [10.1007/BFb0116557, DOI 10.1007/BFB0116557]

[24] OPTICAL-PROPERTIES AND CROSS RELAXATION AMONG SM3+ IONS IN FLUORZINCATE GLASSES [J].

RODRIGUEZ, VD ;

MARTIN, IR ;

ALCALA, R ;

CASES, R .

JOURNAL OF LUMINESCENCE, 1992, 54 (04) :231-236

[25] Effect of host glass on the optical absorption properties of Nd3+, Sm3+, and Dy3+ in lead borate glasses [J].

Saisudha, MB ;

Ramakrishna, J .

PHYSICAL REVIEW B, 1996, 53 (10) :6186-6196

[26] Synthesis, optical spectra and radiative properties Of Sm2O3: PbO: P2O5 glass materials [J].

Sobczyk, Marcin ;

Starynowicz, Przemyslaw ;

Lisiecki, Radoslaw ;

Ryba-Romanowski, Witold .

OPTICAL MATERIALS, 2008, 30 (10) :1571-1575

[27] Influence of modifier oxide on spectroscopic and thermoluminescence characteristics of Sm3+ ion in antimony borate glass system [J].

Sudhakar, K. S. V. ;

Reddy, M. Srinivasa ;

Rao, L. Srinivasa ;

Veeraiah, N. .

JOURNAL OF LUMINESCENCE, 2008, 128 (11) :1791-1798

[28] Judd-Ofelt intensity parameters of trivalent lanthanide ions in a NaPO3-BaF2 based fluorophosphate glass [J].

Van Deun, R ;

Binnemans, K ;

Görller-Walrand, C ;

Adam, JL .

JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 283 (1-2) :59-65

[29]

Yamane M., 2000, GLASSES PHOTONICS

[30] Photoluminescent changes of Eu3+ in ZnO-SiO2 glasses induced by femtosecond laser [J].

Yu, Lixin ;

Nogami, Masayuki .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 462 (1-2) :187-191

← 1 2 3 →