SPECTRAL PROPERTIES OF ND3+-DOPED RO-CENTER-DOT-NA2O-CENTER-DOT-AL2O3-CENTER-DOT-P2O5 (R=MG, CA, BA) GLASS SYSTEM

Authors
BYUN, JOKIM, BHHONG, KSJUNG, HJLEE, SWRYOO, KSIZYNEEV, AAKRAVCHENKO, VB
Issue Date
1994-09
Publisher
JAPAN J APPLIED PHYSICS
Citation
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, v.33, no.9A, pp.4907 - 4912
Abstract
The dependence of spectral properties of the Nd3+-doped (45-x)RO.xNa(2)O.2.5Al(2)O(3).52.5P(2)O(5) (R=Mg, Ca, Ba, 0 less than or equal to x less than or equal to 31, mol%) glasses on RO and on its substitution with Na2O was investigated. Absorption, fluorescence spectra and lifetimes were measured. Both the stimulated emission cross section and the spontaneous emission probability for the F-4(3/2)-->I-4(11/2) transition of Nd3+ in glass were calculated. The results indicate that the effect of RO depends on its ionic field strength and that the substitution of RO with Na2O loosens the glass structure so as to lower the degree of disorder of the phosphate chain structure. A stimulated emission cross section as large as 4.2 x 10(-20) cm(2) and half-lifetime concentration as high as 8 x 10(20) ions/cm(3) were obtained.
Keywords
LASER GLASS; TECHNOLOGY; LASER GLASS; TECHNOLOGY; PHOSPHATE; GLASS; LASER; FLUORESCENCE; RADIATIVE PROPERTY; CONCENTRATION QUENCHING; NETWORK MODIFIER; ND DOPING
ISSN
0021-4922
URI
https://pubs.kist.re.kr/handle/201004/145508
DOI
10.1143/JJAP.33.4907
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KIST Article > Others
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