NIR photoluminescence studies of Nd3+doped B2O3–BaF2–PbF2–Al2O3 glasses for 1.063 μm laser applications

Rani, Rekha; Venkateswarlu, M.; Swapna, K.; Talewar, Rupesh A.; Devi, Ch. B. Annapurna; Rao, A.S.

doi:10.1016/j.jlumin.2020.117701

Cited by 17 publications

(4 citation statements)

References 52 publications

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“…table 3 reveals that the CaAlBBaNaBaFNaF (present) glass has greater Ω 2 values than some other host glasses. That shows more asymmetry of crystal field around Nd 3+ ions in present glasses when compared with other glasses (7,15,16) . Through absorption spectrum, experimental oscillator strengths (f exp ) of the f-f transitions of were found and are used in the work of J-O theory, in the current glasses the Ω 2 parameter has the greater value compare to Ω 2 and Ω 6 the emission intensity through the 4 F 3/2 level of Nd 3+ ions can be unique characterized, Ω 4 and Ω 6 intensity parameters are spectroscopic quality factors.…”

Section: Judd-ofelt Analysismentioning

confidence: 54%

“…table 5 show that oxyfluoride glasses exhibit greater values than oxide glasses at 1.6µm emission when compared among the samples and other reported literatures. As a result, the oxyfluoride glasses made in this work exhibit enhanced radiative characteristics and are therefore likely to be employed as a laser gain medium (7) . Table 4.…”

Section: Radiative Propertiesmentioning

confidence: 97%

“…P. Rekha rani,et.al (2020), had investigated B 2 O 3 -BaF 2 -PbF 2 -Al 2 O 3 glasses. They have shown quantum efficiency is 16% for BaPbAlFBNd2.5 glass (7) . In our cases we investigated quantum efficiency observed 22 to 47%.…”

Section: Introductionmentioning

confidence: 98%

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Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Gurav¹,

Devidas²,

Dinkar³

et al. 2023

IJST

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Background/Objectives: 23CaO + 10Al 2 O 3 + (51 − x)B 2 O 3 + 6BaF 2 + 10Na 2 O + xNd 2 O 3 glasses were designed for understanding the optical properties of the emission, such as absorption, lifetime, and quantum efficiencies (QEs) of the glasses. Methods: The glasses were synthesized using the conventional melt-quenching technique at 1150 0 C. The amorphous nature of the samples was confirmed by x-ray diffraction studies. Findings: The radiative QE (η) obtained from the radiative lifetime by Judd-Ofelt analysis, as well as directly measured lifetime using a 582 nm were measured and compared with other reported literature. Novelty: The present work focuses on the replacement of fluorine ions to their alkali content and studied their stimulated emission cross section. The stimulated emission cross-section shows σ emi =25.3x10 -21 cm 2 and σ emi =18.5x10 -21 cm 2 for oxide (R1) and oxy-fluoride glasses (F2) with 0.5mol% Nd 2 0 3 content respectively. The stimulated emission cross section σ emi =29.9x10 -21 cm 2 and σ emi =32.5x10 -21 cm 2 for oxide (F1) and oxy-fluoride (A3) glasses with 1.0mol% Nd 2 0 3 content respectively. The data clearly suggests that addition of higher fluorine content in the glasses are suitable for NIR solid state device applications.

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Section: Judd-ofelt Analysismentioning

confidence: 54%

Section: Radiative Propertiesmentioning

confidence: 97%

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Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Gurav¹,

Devidas²,

Dinkar³

et al. 2023

IJST

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“…PL studies are essential spectroscopic investigations of photonic devices. In particular, the NIR PL emissions have contributed remarkable potential in various applications such as solar energy conversion, , biomedical optical imaging, , thermal sensing in the biological systems, , NIR detectors, − laser applications, , optical communications, , light-emitting diode, , and photocatalysis − applications. The NIR PL emissions between (1000 to 1700 nm) are very sensitive and effective for in-depth tissue and bone imaging. , As a result, it is essential to develop phosphorescent materials that can impose the NIR region’s tunable PL emissions.…”

Section: Introductionmentioning

confidence: 99%

Tunable Broadband NIR PL Emissions with (Nd³⁺/Er³⁺) Codoped TiO₂ via Synergetic Energy Transfer

Katta

Biswas

Raavi

2022

ACS Appl. Opt. Mater.

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Tunable photoluminescence (PL) emissions in the near-infrared (NIR) region are the most advantageous qualities that benefit NIR light-dependent applications such as thermosensing, biosensing, solar cells, LED, bioimaging technologies, etc. Rare-earth trivalent (+3) doping is essential for the NIR light sources due to their unique transitions. Especially, multi-rare-earth doping is being highlighted for the effect of generating broad-band emissions. This work presents a concept of tunable NIR PL emission via codoping of (Er/Nd) into TiO2 at varied excitation wavelengths and stoichiometry ratios. We discovered the synergetic energy transfer (ET) mechanism among the Er3+ and Nd3+ energy states, which led to tuning the PL emissions over the NIR region to the mid-IR region. A broad-band PL emission from 850 to 1700 nm at an indirect excitation wavelength of 360 nm confirms the energy transfer (ET) occurring from TiO2 (host) to the lanthanide of Er3+ and Nd3+ (guests). In addition, the direct excitation (visible) excitation-dependent PL emission and their associated electron decay lifetime suggest the possibility of ET between Er3+ and Nd3+, which is evidenced by high energy transfer efficiency (ETE), whereas the ETE from Er3+ to Nd3+ is calculated to be 46% measured at the high intense PL emission of (1532 nm, Er: 4 F 13 / 2 .25em to .25em I 15 / 2 ) under the excitation of 528 nm. These results are consistent with the enhanced QY values up to 90% for the (Er/Nd) codoped TiO2 compared to the single Er-doped TiO2. Similarly, ETE from Nd to Er is almost 48% attained at the emission of (1068 nm, Nd: 4 F 3 / 2 .25em to .25em 4 I 11 / 2 ) under 588 nm excitation and their changes in the QY values indicate the ET occurrence from Nd3+ to Er3+. Thus, it is hypothesized that the PL investigations support the synergetic ET between Nd3+ and Er3+ is responsible for the tunable PL emissions.

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Investigation of the role of fluorine on fabrication, physio-optical and radiation shielding properties of aluminum barium borate (ABB) glasses containing Er2O3

Alsaif,

Al-Ghamdi,

Alfryyan

et al. 2024

Opt Quant Electron

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NIR photoluminescence studies of Nd3+doped B2O3–BaF2–PbF2–Al2O3 glasses for 1.063 μm laser applications

Cited by 17 publications

References 52 publications

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Tunable Broadband NIR PL Emissions with (Nd³⁺/Er³⁺) Codoped TiO₂ via Synergetic Energy Transfer

Investigation of the role of fluorine on fabrication, physio-optical and radiation shielding properties of aluminum barium borate (ABB) glasses containing Er2O3

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NIR photoluminescence studies of Nd3+doped B2O3–BaF2–PbF2–Al2O3 glasses for 1.063 μm laser applications

Cited by 17 publications

References 52 publications

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Photoluminescence Interaction of Alkali Fluoride Over Alkali Oxide in Nd3+ Doped Glasses for NIR Applications

Tunable Broadband NIR PL Emissions with (Nd3+/Er3+) Codoped TiO2 via Synergetic Energy Transfer

Investigation of the role of fluorine on fabrication, physio-optical and radiation shielding properties of aluminum barium borate (ABB) glasses containing Er2O3

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Product

Resources

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Tunable Broadband NIR PL Emissions with (Nd³⁺/Er³⁺) Codoped TiO₂ via Synergetic Energy Transfer