Study of visible upconversion luminescence in Er3+ and Er3+/Yb3+ doped tungsten tellurite glasses

Kumari, Hemlata; Ansari, Ghizal F.; Mahajan, S. K.; Karim, Rezaul; Bairagi, Sukhdev

doi:10.1016/j.matpr.2023.06.294

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…(i) The emission at 1270 nm is due to the transition: 4F 9/2 → 4I 13/2 , preceded by the energy transfer from the excited state absorption (ESA): 4I 11/2 to 4F 9/2 . A similar phenomenon of ESA from 4I 11/2 to 4F 7/2 and 4F 9/2 has been reported [101]. A closely related NIR emission by the transition 4F 9/2 → 4I 13/2 at 1.15 µm was observed in the fluoroaluminate glasses when pumped at 638 nm [102].…”

Section: Nir Emissionsupporting

confidence: 83%

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: Nir Emissionsupporting

confidence: 83%

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 green and red zones show discernible up-conversion emissions, which are amplified when the samples are co-doped with Yb3+. Emissions in the near-infrared range have good quantum efficiency [32].…”

Section: K Azman Et Alhave Been Obtainedmentioning

confidence: 99%

A Review on physical, optical andUp-Conversion Properties of Lead Borate Glasses Co-doped with different rare earth ions

Bairagi,

Lone

et al. 2024

Int. J. Res. Publ. Rev.

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In this paper we review the effect of physical and optical, structural and upconversion properties were determined with different Nd 3+ -Yb 3+ Doped Lead Borate of tellurite base glass. The physical properties of the glasses were evaluated and the change in density, molar volume and ionic packing density in these glasses indicates the effect of B2O3different content show on the glasses structure. The study of optical properties such as the optical band gap and refractive index of zinc tellurite glass were studied. Lead Borate Tellurite glasses doped with Nd 3+ -Yb 3+ ions were synthesized by varies researcher. The glasses were characterized by Xray diffraction, optical absorption and photoluminescence spectra. The glassy nature of borate tellurite host glass has been confirmed through XRD measurements.The glasses doped or co-doped with rare-earth ions have generated much interest due to the possibility of many potential applications in the field of photonics such as optical communication fibers, up conversion, photonic memories, display systems, X-ray image processing, sensors, optical amplifiers, optoelectronics, magnetooptical devices

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“…In previous research, holmium oxide has been used extensively in telecommunication and solid-state lasers [8]. Moreover, samarium oxide is one of the best lanthanide compounds to be utilized as an optical amplifier and fiber [9]. Meanwhile, neodymium oxide has the greatest interest in the area of optical materials due to its near-infrared lasing properties at around 1.06 μm [10].…”

Section: Introductionmentioning

confidence: 99%

Incorporation of neodymium, holmium, erbium, and samarium (oxides) in zinc-borotellurite glass: Physical and optical comparative analysis

Azlina,

Azlan,

Suriani

et al. 2024

Kompl. Ispolz. Min. Syra = Compl. Use of Min. Resour.

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Investigating the effect of different types of rare-earth oxides on zinc borotellurite glass is important to determine the potential application in optical devices. The addition of rare-earth oxides in zinc borotellurite glass is well-known to enhance the optical properties due to the effects of 4f-4f transitions. In this work, we aim to compare the effect of different rare-earth oxides on zinc borotellurite glass denoted as ZBTNd, ZBTHo, ZBTEr and ZBTSm. The glass samples were successfully fabricated via the melt-quenched technique. The physical investigation of the glasses has been done by measuring the density and molar volume. It was found that ZBTNd glass has the lowest density than the other glasses due to the small atomic radius in neodymium oxide. High-density value for ZBTHo glass shows potential to be used as radiation shielding properties. The high value of molar volume for ZBTNd glass is advantageous for fiber optics as ZBTNd glass has good performance in elasticity. It was found that ZBTEr has a lower refractive index than the other glasses due to low dispersion characteristics. However, ZBTEr glass has good performance to be used in optical communication applications. It was found that the optical absorption shifts to a longer wavelength beginning from ZBTEr > ZBTHo > ZBTNd > ZBTSm. The optical band gap energy for ZBTEr glass is higher than the other glasses due to the Coulomb repulsion energy for erbium which is greater than neodymium and samarium and slightly higher than holmium. The pattern of electronic polarizability for all glasses was found as follows ZBTSm>ZBTNd>ZBTEr>ZBTHo. The optical basicity for ZBTEr was found highest which indicates a higher acidity, meanwhile, the ZBTNd glass has the lowest value which corresponds to a higher basicity.

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Study of visible upconversion luminescence in Er3+ and Er3+/Yb3+ doped tungsten tellurite glasses

Cited by 3 publications

References 24 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

A Review on physical, optical andUp-Conversion Properties of Lead Borate Glasses Co-doped with different rare earth ions

Incorporation of neodymium, holmium, erbium, and samarium (oxides) in zinc-borotellurite glass: Physical and optical comparative analysis

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Study of visible upconversion luminescence in Er3+ and Er3+/Yb3+ doped tungsten tellurite glasses

Cited by 3 publications

References 24 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

A Review on physical, optical andUp-Conversion Properties of Lead Borate Glasses Co-doped with different rare earth ions

Incorporation of neodymium, holmium, erbium, and samarium (oxides) in zinc-borotellurite glass: Physical and optical comparative analysis

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Product

Resources

About

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