Spectroscopic and Radiative Properties of Several Nd3+ Ions in Borate Glass System

Abstract

Radiative properties and spectroscopic studies of several Nd 3+ doped borate glass system have been reported. Judd-Ofelt intensity parameter and other parameters like oscillator strength (f), effective bandwidth ( eff ), radiative transition probabilities (A R ), stimulated emission cross section (), branching ratio ( R ), radiative lifetime ( R ) and experimental lifetime ( exp ) for the hypersensitive Nd 3+ doped Borate Glass are listed and discussed. The variation of  2 values for the different host matrix are expressed their covalency among Nd 3+ ions in the glass matrix. In this study, reported that the hypersensitive transition achieved at 4 I 9/2  4 G 5/2 , 2 G 7/2 centered at 580 -585 nm range.Keywords: Borate glass, Judd-Ofelt, radiative INTRODUCTIONIn the several years and recently, laser gain medium based on Nd 3+ doped glasses have been attracted much attention from researchers in the field of photonic and laser. The above related to Nd 3+ laser application such as optical amplifier, laser pumping, optical communication, optical waveguide, storage data optically, radar and medical instrumentation [1][2][3][4][5]. Medium gain laser characteristics for commercial laser required were must satisfied sharpness fluorescent lines, strong absorption bands and sensible for high quantum efficiency in accordance with the needed transition photon [6].The above requirements have been obtained by a small amount of concentration Nd 3+ ions-doped glass material, since Nd 3+ ions were able to produce population inversion for result stimulated emission in the visible range (such as emission transition at 4 G 7/2  4 I 9/2 , 4 G 7/2  4 I 11/2 , 4 G 7/2  4 I 13/2 ) [7] and the NIR range (lasing transition 4 F 3/2  4 I 9/2 , 4 F 3/2  4 I 11/2 , 4 F 3/2  4 I 13/2 ) [1]. Improved laser performance is strongly influenced by the composition of the host glass matrix and the concentration of doped ions, since the stimulated emission quality depends on host matrix in which the ions are incorporated [7,8]. Several types of commercial glass are generally used as a laser host matrix, i.e silicate, phosphate, borate glasses and several heavy metal oxide glasses [1,2,7,9]. Some of the results showed that the silicate glasses has its advantages as well as high chemical stability, high transparency for UV, low thermal expansion coefficient leading to strong thermal resistance, a small nonlinear refractive index, high surface damage threshold,

Effect of Glymo on the Morphological and Optical Properties of Eu3+-Doped Lu2SiO5 Films

“…An Eu 3+ -O charge transfer band (CT) was identified at 258 nm in both systems [30,32]. For the LS2 system, the electronic transitions between 5 D4 ← 7 F0, 5 G2 ← 7 F0, and 5 L6 ← 7 F0 levels are identified at 361 nm, 380 nm, and 393 nm, respectively [33]. The incorporation of Glymo into the system benefits the J-mixing effect, which can be identified in the absorption spectra of the LSG2 system where the absorption band at 414 nm is higher than the Eu 3+-O CT band.…”

Effect of the Addition of Pb3O4 and TiO2 on the Optical Properties of Er3+/Yb3+:TeO2–WO3 Glasses

“…The density of xylene is 0.86 g (cm) −3 . The density of the Er 3+ /Yb 3+ -doped/codoped TW glass was found to be ∼5.23 g/cm 3 . The density of glass samples increases up to 5.48 and 5.86 g/cm 3 on incorporating the Pb 3 O 4 and TiO 2 materials, respectively.…”

Pengaruh Konsentrasi Ion Aktif Erbium (Er3+) Terhadap Sifat Fisis Medium Gelas Borat-Lithium

“…Selanjutnya, jenis gelas oksida merupakan kandidat host matriks yang sangat populer bagi ion Er 3+ untuk dapat menghasilkan banyak aplikasi. Hal ini disebabkan gelas oksida memiliki beberapa keunggulan diantaranya kekuatan mekanik yang -28 c Jurusan Fisika FMIPA ITS tinggi, stabilitas termal dan durabilitas kimia yang baik dan mudah untuk dipabrikasi [5,6]. Beberapa jenis gelas oksida yang sangat banyak dimanfaatkan sebagai host ion aktif adalah gelas boron oksida (B 23 ), phosfat oksida (P 2 O 5 ) dan silikat oksida (Si 2 O 3 ).…”