Spectroscopic investigations on 1.53 μm NIR emission of Er3+ doped multicomponent borosilicate glasses for telecommunication and lasing applications

Jose, Adon; Gopi, Subash; Krishnapriya, T.; Jose, Twinkle Anna; Joseph, Cyriac; Unnikrishnan, N.V.; Biju, P.R.

doi:10.1016/j.matchemphys.2021.124223

Cited by 40 publications

(7 citation statements)

References 33 publications

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“…From Figure 3, the bands observed at 407, 522, and 546 nm were assigned as ( 2 G, 4 F, 2 H) 9/2 → 4 I 15/2 , 2 H 11/2 → 4 I 15/2 , and 4 S 3/2 → 4 I 15/2 transitions, respectively, and among these, the transition that corresponded to 4 S 3/2 → 4 I 15/2 (546 nm) was observed to be more intense in the visible region. [ 18 ]…”

Section: Resultsmentioning

confidence: 99%

Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

et al. 2021

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A series of Dy3+/Sm3+/Er3+ triply doped multicomponent borosilicate glasses (DSE) was synthesized using varying Er3+ ions concentrations through a conventional melt quenching technique. The influence of triple doping on the optical characteristics of the prepared glass was evaluated to estimate the possibility of achieving white light emission through optical absorption, photoluminescence excitation (PLE), and emission (PL) measurements. Based on the PLE and PL spectral profiles, the presence of energy transfer processes between Dy3+, Sm3+, and Er3+ was confirmed. Furthermore, for Dy3+/Sm3+/Er3+ triply doped glass, an enhancement in Er3+ green luminescence and a noticeable decrease in Dy3+ and Sm3+ emissions were detected with the increase in Er3+concentration. The nature of energy transfer in DSE glass was investigated through Dexter's energy transfer mechanisms and the obtained result suggested that a dipole–dipole interaction was responsible for the dominant Sm3+ to Dy3+ and Dy3+ to Er3+ energy transfer processes. The precise characteristic colours that emanated from the as‐prepared samples were evaluated using Commission Internationale de l'Éclairage co‐ordinates and correlated colour temperature values and suggested its suitability for white light emission. The quantum efficiency of the prepared glass was determined experimentally. The aforementioned results recommend that the Dy3+/Sm3+/Er3+ triply doped multicomponent borosilicate glass irradiated with ultraviolet light sources might be useful for the generation of cool/warm white light‐emitting applications.

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Section: Resultsmentioning

confidence: 99%

Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

et al. 2021

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“…The six peaks centered at 369 nm, 403 nm, 444 nm, 461 nm, and 480 nm (and 497 nm) correspond to the transitions from the ground state 4I 15/2 to 4G 9/2 + 4G 11/2 , 2G 9/2 , 4F 3/2 , 4F 5/2 , and 4F 7/2 respectively [67,90]. While excitation peaks of relatively high intensity could be observed at 369 nm and 403 nm, the emission spectrum of the glasses was recorded by exciting the sample at 379 nm, wherein the Er 3+ ions undergo ground state absorption (GSA): 4I 15/2 → 4G 11/2 [64]. The ions decay non-radiatively to different energy states before luminescing in the blue, green, and red regions as follows.…”

Section: Spcementioning

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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“…The foremost region considered as a steady-absorption region associated with exciton photon coupling. Another section that comprise of inter band electronic transitions and strong absorptions are termed as the Tauc's region where the energy gap is evaluated and the third sector is called as urbach region [2,7]. The Tauc plot for FABS1 glass portrayed as figure 2 and obtained energy bandgap value for the direct allowed transition is Eg= 3.93 eV.…”

Section: Absorbance Spectrummentioning

confidence: 99%

“…Growing technological needs of luminescent materials that found potential applications in diverse optoelectronic devices have been intensified the research in scientific community for the invention of novel rare earth embedded materials [1][2][3]. Glasses regarded to be the active contenders of host matrices appraised in this context due to their excellent optical transparency, thermal and mechanical stability, large rare earth ion solubility and high luminescence efficiency.…”

Section: Introductionmentioning

confidence: 99%

Investigations on the fluorescence and radiative parameters of Sm³⁺ activated BaO-ZnF₂-K₂O-SiO₂-B₂O₃ glass for laser applications

Jose

Krishnapriya

Raju³

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Present work mainly illustrates the absorbance and fluorescence characteristics of 1 mol% trivalent Samarium ions integrated BaO-ZnF2-K2O-SiO2-B2O3 glass to identify its applicability in photonic materials. With the aid of well renowned Judd Ofelt (J-O) analysis, its corresponding parameters were evaluated by using the absorbance spectrum of the prepared host matrix. Fluorescence spectrum recorded under 400 nm excitation epitomizes 4 luminescent transitions and among these the 4G5/2→6H7/2 transition (598 nm) is observed to be the intense one. Diverse radiative parameters were estimated for that intense emission transition in the Samarium ions integrated BaO+ZnF2+K2O+SiO2+B2O3 glassy system. Comparatively superior fluorescent and radiative features recommend the prepared glassy system for orange lasing applications.

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Spectroscopic investigations on 1.53 μm NIR emission of Er3+ doped multicomponent borosilicate glasses for telecommunication and lasing applications

Cited by 40 publications

References 33 publications

Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

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

Investigations on the fluorescence and radiative parameters of Sm³⁺ activated BaO-ZnF₂-K₂O-SiO₂-B₂O₃ glass for laser applications

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Spectroscopic investigations on 1.53 μm NIR emission of Er3+ doped multicomponent borosilicate glasses for telecommunication and lasing applications

Cited by 40 publications

References 33 publications

Energy transfer analysis and realization of cool to warm white light in Dy3+/Sm3+/Er3+ triply doped multicomponent borosilicate glass for white light generation

Energy transfer analysis and realization of cool to warm white light in Dy3+/Sm3+/Er3+ triply doped multicomponent borosilicate glass for white light generation

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

Investigations on the fluorescence and radiative parameters of Sm3+ activated BaO-ZnF2-K2O-SiO2-B2O3 glass for laser applications

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Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

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

Investigations on the fluorescence and radiative parameters of Sm³⁺ activated BaO-ZnF₂-K₂O-SiO₂-B₂O₃ glass for laser applications