Optical characterization and polaron radius of Bi2O3 doped silica borotellurite glasses

Geidam, I.G.; Матори, Хамирул Амин; Halimah, M.K.; Chan, K.T.; Muhammad, F.D.; Ishak, M.; Umar, S.A.; Hamza, A.M.

doi:10.1016/j.jlumin.2022.118868

Cited by 31 publications

(14 citation statements)

References 56 publications

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“…The electron-phonon interaction mediated by the quasiparticle polaron [42] and OPD exhibits an increasing trend in association with decreasing molar volume [17]. The decrease in volume and increase in density is due to interactive bonding through the NBO, contributing to a bolstered structural network [43] and increased field strength.…”

Section: Physicochemical Analysismentioning

confidence: 99%

Structural and optical investigations of RE³⁺: Yb, Er, Sm, Nd, Ce-doped multi-functional silica glasses for photonic applications

Yasmin,

Geetha

2024

J. Phys. D: Appl. Phys.

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The influence of various trivalent lanthanides was investigated in the silica phosphate multi-component glass matrix, synthesized by the sol-gel method. The prepared glasses were analyzed to explore the degree of bandwidth amplification for telecommunication systems, and the potentiality of lasing media and smart glass films. Alkaline earth metal ions of Ca2+ were effectuated as a glass modifier, mediating the formation of non-bridging oxygen with the glass formers, and imputing favorable structural attributes to the glasses for versatile applications. The bonding parameter derived from the average nephelauxetic ratio implies covalency around the rare earth ion sites in the Er3+ and Nd3+ doped systems, while the Sm3+ doped glass exhibits ionicity. In the silica-based glass matrix singly doped with Yb3+, the coexistence of Yb3+/ Yb2+ ions was evidenced. Transitions across 4f14 and 4f135d levels of Yb2+, with an experimental lifetime of 45.8 ns would provide prospective pulsed yellow lasers, for non-invasive therapeutics. Er3+ doped glass evinced a large bandwidth of 93.775 nm at 1477 nm and a high quantum efficiency of 97%, favorable for O+E+S-band telecommunication networks. The transition corresponding to 4G_(5/2)→6H_(7/2) of Sm3+ and 2G_(7/2)→4I_(9/2) of Nd3+ is suggestive that the respective doped glasses could be devised into solid-state red and green laser sources. Novel NIR emission at 1476 nm was also evidenced in the Sm3+ and Nd3+ doped systems. Prominent absorption at 280 nm and complete transparency in the visible region observed in the Ce3+ mono-doped system make it ideal for smart glasses as UVB and UVC shielding films.

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Section: Physicochemical Analysismentioning

confidence: 99%

Structural and optical investigations of RE³⁺: Yb, Er, Sm, Nd, Ce-doped multi-functional silica glasses for photonic applications

Yasmin,

Geetha

2024

J. Phys. D: Appl. Phys.

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“…In glass science, the refractive index (η) is the most prominent optical parameter which exhibits the refractive characteristics of a glassy material with respect to the vacuum [48]. The refractive index of glass samples varies according to the compositions and E , g ind can be determined by using following relation [40];…”

Section: Optical Propertiesmentioning

confidence: 99%

“…Moreover, the theoretical optical dielectric constant (ε) of all the fabricated glasses can be estimated using the cited non-linear relation [40,42]:…”

Section: Optical Propertiesmentioning

confidence: 99%

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Doping impacts of La₂O₃ on physical, structural, optical and radiation shielding properties of (30-x)BaCO₃–30TiO₂–40SiO₂-xLa₂O₃ (0 ≤ x ≤ 6) glasses for optoelectronic applications

Mishra,

Kumari,

Shweta

et al. 2023

Phys. Scr.

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Herein, synthesis of novel barium silicate glasses doped with La2O3 in the system (30-x)BaCO3–30TiO2–40SiO2-xLa2O3, BTSL (0 ≤ x ≤ 6) via fast melt-quenching technique was carried out. Further, to confirm the amorphous behaviour of prepared glass samples, x-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) were carried out. The density of all prepared glasses was determined using Archimedes’ principle and found to be in an increasing manner. To investigate the doping influence of La2O3 on the glasses, few more physical properties like molar volume (Vm), polaron radius (rp), and field strength (Fs) were also studied and found to be increased due to incorporation of La2O3 into BTSL glassy system. Moreover, to explore the structural, functional, and bonding mechanism of the glasses, FTIR, Raman and 29Si-MAS-ssNMR spectroscopies were performed. Further, to investigate the numerous optical parameters, UV–visible spectroscopy was executed, and energy band gaps were found in the decreasing manner as increasing the La2O3 concentrations. Additionally, to study the optoelectronic properties, refractive indices (η) and optical dielectric constant (ε) were determined and revealed the increasing behaviour and found suitable material for optoelectronic devices. Furthermore, the radiation shielding parameters, mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), etc were determined using Phy-X/PSD software and these parameters are increased owing to the doping of La2O3. Among all fabricated glasses, (30-x)BaCO3–30TiO2−40SiO2−6La2O3, BTS6L glass exhibited outstanding optical and radiation attenuation properties; can be tailored for the fabrication of optoelectronic and radiation protection devices.

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“…Bismuth borate glasses (BBG) are suitable for use in lasers, 1,2 optical fibers, 3,4 lenses, and other optical components because of their high refractive index and good optical transparency in the visible and near-infrared (NIR) emission of the electromagnetic spectrum. BBGs are also being explored for laser applications due to their high nonlinear optical properties, 5 which make them appealing for frequency conversion and amplification of laser pulses.…”

mentioning

confidence: 99%

Erbium-Ion-Doped Bismuth Borate Glasses for High Optical Gain NIR Fiber Laser Applications

Prasanth,

Ravi,

Thyagarajan

2024

ECS J. Solid State Sci. Technol.

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The study focused on investigating the thermal, structural, and luminescent properties of bismuth borate glasses doped with erbium (Er3+) ions and modified with Gd2O3, K2O, and Li2O (BBGKL: Erx) aiming for fiber lasers. Two glass transition temperatures were observed at 381 (Tg1) and 471 K (Tg2) for BBGKL glass. O1s de-convolution spectrum bridging oxygens for BBGKL glass, including B-O, Bi-O, Li2O, and K2O, were discovered by X-ray photoelectron spectroscopy. Both the photoluminescence 4I13/2→4I15/2 NIR and the absorption bands from the UV-visible-near infrared (NIR) spectrum were found to occur at 1531 nm for BBGKL: Er. Luminescence quenching was not noticed up to 3.0 mol% of Er3+ ion concentration. The BBGKL: Er0.5 glass has a remarkable connection between its absorbance and emission cross-sections of 0.77 and 0.82 x 10-20 cm2, respectively. The longest lifetime of green emission for the 4S3/2→4I15/2 transition was found for BBGKL: Er2.0 glass at 10.6 µs and 1531 nm NIR emission for the 4I13/2→4I15/2 transition of BBGKL: Er0.5 glass was 0.77 ms. In the 1413-1728 nm NIR band region for BBGKL:Er3.0, high-optical-gain cross-section G(λ) was promising for the population inversion at γ=0.6. These findings suggest that the BBGKL: Er0.5 glass would prove helpful in NIR fiber laser applications

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Optical characterization and polaron radius of Bi2O3 doped silica borotellurite glasses

Cited by 31 publications

References 56 publications

Structural and optical investigations of RE³⁺: Yb, Er, Sm, Nd, Ce-doped multi-functional silica glasses for photonic applications

Structural and optical investigations of RE³⁺: Yb, Er, Sm, Nd, Ce-doped multi-functional silica glasses for photonic applications

Doping impacts of La₂O₃ on physical, structural, optical and radiation shielding properties of (30-x)BaCO₃–30TiO₂–40SiO₂-xLa₂O₃ (0 ≤ x ≤ 6) glasses for optoelectronic applications

Erbium-Ion-Doped Bismuth Borate Glasses for High Optical Gain NIR Fiber Laser Applications

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Optical characterization and polaron radius of Bi2O3 doped silica borotellurite glasses

Cited by 31 publications

References 56 publications

Structural and optical investigations of RE3+: Yb, Er, Sm, Nd, Ce-doped multi-functional silica glasses for photonic applications

Structural and optical investigations of RE3+: Yb, Er, Sm, Nd, Ce-doped multi-functional silica glasses for photonic applications

Doping impacts of La2O3 on physical, structural, optical and radiation shielding properties of (30-x)BaCO3–30TiO2–40SiO2-xLa2O3 (0 ≤ x ≤ 6) glasses for optoelectronic applications

Erbium-Ion-Doped Bismuth Borate Glasses for High Optical Gain NIR Fiber Laser Applications

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Structural and optical investigations of RE³⁺: Yb, Er, Sm, Nd, Ce-doped multi-functional silica glasses for photonic applications

Structural and optical investigations of RE³⁺: Yb, Er, Sm, Nd, Ce-doped multi-functional silica glasses for photonic applications

Doping impacts of La₂O₃ on physical, structural, optical and radiation shielding properties of (30-x)BaCO₃–30TiO₂–40SiO₂-xLa₂O₃ (0 ≤ x ≤ 6) glasses for optoelectronic applications