BYUN, JO KIM, BH HONG, KS JUNG, HJ LEE, SW RYOO, KS IZYNEEV, AA KRAVCHENKO, VB 2024-01-21T21:33:11Z 2024-01-21T21:33:11Z 2022-01-11 1994-09 0021-4922 https://pubs.kist.re.kr/handle/201004/145508 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. English JAPAN J APPLIED PHYSICS LASER GLASS TECHNOLOGY SPECTRAL PROPERTIES OF ND3+-DOPED RO-CENTER-DOT-NA2O-CENTER-DOT-AL2O3-CENTER-DOT-P2O5 (R=MG, CA, BA) GLASS SYSTEM Article 10.1143/JJAP.33.4907 1 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, v.33, no.9A, pp.4907 - 4912 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 33 9A 4907 4912 scie scopus A1994PM61500024 2-s2.0-0028510945 Physics, Applied Physics Article LASER GLASS TECHNOLOGY PHOSPHATE GLASS LASER FLUORESCENCE RADIATIVE PROPERTY CONCENTRATION QUENCHING NETWORK MODIFIER ND DOPING