Optical properties of bismuth borate glasses

Oprea, Isabella-Ioana; Hesse, H.; Betzler, K.

doi:10.1016/j.optmat.2003.10.006

Cited by 127 publications

(58 citation statements)

References 8 publications

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“…Notice that the short wavelength absorption-edge shifts to longer wavelengths when the Bi 2 O 3 content is increased as it was already noticed for other glass compositions containing bismuth. 23,24 The absorption-edge shift is attributed to the formation of non-bridging oxygen units that occurs when the bismuth oxide amount is increased.…”

Section: Methodsmentioning

confidence: 99%

Nonlinear optical properties of Bi2O3-GeO2 glass at 800 and 532 nm

Oliveira¹,

Falcão-Filho²,

Araújo³

et al. 2013

Journal of Applied Physics

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The nonlinear (NL) optical properties of glassy xBi 2 O 3 -(1Àx) GeO 2 with x ¼ 0.72 and 0.82 were investigated. The experiments were performed with lasers at 800 nm (pulses of 150 fs) and 532 nm (pulses of 80 ps and 250 ns). Using the Kerr gate technique, we observed that the NL response of the samples at 800 nm is faster than 150 fs. NL refraction indices, jn 2 j % 5 Â 10 À16 cm 2 /W, and two-photon absorption coefficients, a 2 , smaller than 0.03 cm/GW, were measured at 800 nm. At 532 nm, we measured the NL transmittance of the samples. From the results obtained, we determined a 2 %1 cm/GW and excited-state absorption cross-sections of %10 À22 cm 2 due to freecarriers. V C 2013 AIP Publishing LLC. [http://dx

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Section: Methodsmentioning

confidence: 99%

Nonlinear optical properties of Bi2O3-GeO2 glass at 800 and 532 nm

Oliveira¹,

Falcão-Filho²,

Araújo³

et al. 2013

Journal of Applied Physics

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“…Silicate glasses are chemically durable, thermally stable and optically transparent at the excitation and lasing wavelength. Bismuth oxide glasses are more suitable due to its high refractive index, low phonon energy and good chemical suitability [7][8]. The efforts to improve quantum efficiency of the luminescence bands have paid attention to heavy metal host materials [9][10].…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic Properties of Erbium Ions Doped in Bismuth Boro-Silicate Glasses

Bhardwaj

Shukla

Sanghi

et al. 2013

Int. J. Mod. Phys. Conf. Ser.

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ions were prepared by melt-quench technique. Optical absorption and fluorescence spectra were recorded at room temperature for all glass samples. Based on the Judd-Offelt theory, spectroscopic properties of Er 3+ ions are discussed by changing the host glass compositions. The intensity parameters Ω 2 , Ω 4 , and Ω 6 are determined by applying least square analysis method. The variation of Ω 2 and Ω 6 with Bi 2 O 3 content has been attributed to changes in the asymmetry of the ligand field at the rare earth ion site and to the changes in the rare earth oxygen (RE-O) covalency. The variation of Ω 4 with Bi 2 O 3 content has been attributed to rigidity of the samples. Using these intensity parameters various radiative properties like spontaneous emission probability, branching ratio, radiative life time and stimulated emission cross-section of various emission lines have been evaluated. An intense green luminescence bands with maximum around 516 nm and 536 nm are assigned to the 2 H 11/2 → 4 I 15/2 and 4 S 3/2 → 4 I 15/2 transitions respectively has been obtained.

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“…The bismuth oxide glasses have wide range of applications for optical and electronic devices, mechanical sensors, and reflecting windows [3,4]. Bi 2 O 3 is not a classical glass former but due to high polarisibility and small field strength of Bi 3+ ions, in the presence of conventional glass formers like SiO 2 , PbO and B 2 O 3 , a glass network of BiO 3 and BiO 6 may be built [5].…”

Section: Introductionmentioning

confidence: 99%

Structural and Physical Properties of ZnO Modified Bismuth Silicate Glasses

et al. 2012

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Zinc bismuth silicate glasses with compositions 40SiO 2 · xZnO · (60 − x)Bi 2 O 3 (x = 0, 5, 10, 15, 20, 25, 30, 35, and 40) have been prepared by conventional melt-quench technique and the solubility limit of zinc in bismuth silicate glass system has been estimated using X-ray diffraction technique. Density has been measured using Archimedes' principle; with increase in ZnO in the samples, the molar volume and density are found to decrease. The glass transition temperature (T g ) has been determined by using differential scanning calorimetry (DSC) and is observed to increase with increase in ZnO content. Raman and FTIR spectra have been recorded at room temperature and the analysis of Raman and FTIR shows that in all the glass compositions, asymmetric and symmetric stretched vibrations of Si-O bonds in SiO 4 tetrahedral units exist and with decrease in Bi 2 O 3 , the contribution of symmetric vibrations begins to dominate which results in increased compactness of the glass structure.

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Optical properties of bismuth borate glasses

Cited by 127 publications

References 8 publications

Nonlinear optical properties of Bi2O3-GeO2 glass at 800 and 532 nm

Nonlinear optical properties of Bi2O3-GeO2 glass at 800 and 532 nm

Spectroscopic Properties of Erbium Ions Doped in Bismuth Boro-Silicate Glasses

Structural and Physical Properties of ZnO Modified Bismuth Silicate Glasses

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