Spectroscopic and optical investigations on Er3+/Yb3+co-doped bismuth–boroleadlithium glasses for solid state laser applications

Bhemarajam, J.; Prasad, P. Syam; Babu, M. Mohan; Prasad, M.

doi:10.1016/j.optmat.2021.111657

Cited by 11 publications

(3 citation statements)

References 46 publications

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“…This behavior is essential in the optical features of rare-earth ions. It is possible to adjust the rate of the cross-relaxation (CR) process and then govern the optical results of rare-earth ions [40,41]. The slope value (n) increased with increasing crosslinker content and reached the highest value for highly crosslinked PEMA gels.…”

Section: Color Chromaticity and Color Tunability Propertiesmentioning

confidence: 99%

Synthesis, structures, luminescent and color properties of polyethylmethacrylate (PEMA) polymers doped with rare earths

Buhari,

Aktaş,

Erdem

et al. 2023

J Polym Res

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Solid-state bulk polymer hosts doped with rare earths are expected to play a central role in the development of future light-emitting diodes and photonic devices due to the superior properties of polymers. In this study, linear polyethylmethacrylate (PEMA) and crosslinked PEMA gels doped with CdNb 2 O 6 : Er 3+ /Yb 3+ nanocrystal powders were synthesized by free-radical crosslinking copolymerization.Er 3+ /Yb 3+ ion structures embedded in PEMA polymers were investigated by the X-ray diffraction technique. The average crystalline particle sizes were found using the Pielazsek particle distribution and the Scherrer equation. The particle sizes decreased from 60 nm to 17 nm for CdNb 2 O 6 : Er 3+ /Yb 3+ powders when they were embedded in PEMA polymers. Transmission electron microscopy and scanning electron microscopy monitored the change in the morphology of polymer samples doped with CdNb 2 O 6 : Er 3+ /Yb 3+ powders. The optical properties of polymer samples were investigated by measuring luminescence spectra at room temperature. The doped Er 3+ /Yb 3+ ion excited with a 975 nm diode laser achieved the up-conversion (UC) emissions by involving two-photon absorptions in the visible region. The UC intensities and absorbed photon numbers were increased by increasing crosslinker content. The effects of change in the structure and morphology of the host polymer material on the color tuning, color coordinates and color quality parameters were observed.

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Section: Color Chromaticity and Color Tunability Propertiesmentioning

confidence: 99%

Synthesis, structures, luminescent and color properties of polyethylmethacrylate (PEMA) polymers doped with rare earths

Buhari,

Aktaş,

Erdem

et al. 2023

J Polym Res

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“…Optical sources such as glasses and glass ceramics doped with trivalent rare-earth ions (RE 3+ ) operating in the nearinfrared (NIR) spectral range are interesting systems due to their wide field of applications in the fabrication of fibers, waveguides, solid-state lasers, and amplifiers. [1][2][3][4][5][6][7] Moreover, the significant progress in modern information technology and capacity in optoelectronics demands searching for new optical fiber amplifiers with broad and efficient gain bandwidth in the telecommunication windows. [8][9][10] Therefore, inorganic materials doped with RE 3+ ions, such as trivalent praseodymium (Pr 3+ ) and thulium (Tm 3+ ) ions, have been paid attention owing to their unique spectroscopic properties.…”

Section: Introductionmentioning

confidence: 99%

Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr³⁺ and Tm³⁺ ions

et al. 2023

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Near‐infrared luminescence of Pr3+ and Tm3+ ions in titanate‐geramanate glasses have been studied for laser and fiber amplifier applications. The effect of the molar ratio GeO2:TiO2 (from 5:1 to 1:5) on spectroscopic properties of glass systems was studied by absorption, luminescence measurements, and theoretical calculations using the Judd‐Ofelt theory. It was found that independently of the TiO2 concentration, intense near‐infrared emissions at 1.5 μm and 1.8 μm were observed for glasses doped with Pr3+ and Tm3+ ions, respectively. Moreover, several spectroscopic and near‐infrared (NIR) laser parameters for Pr3+ and Tm3+ ions, such as emission bandwidth, stimulated emission cross‐section, quantum efficiency, gain bandwidth, and figure of merit, were determined. The results were discussed in detail and compared to the different laser glasses. Systematic investigations indicate that Pr3+‐doped system with GeO2:TiO2 = 2:1 and Tm3+‐doped glass with GeO2:TiO2 = 1:2 present profit laser parameters and could be successfully applied to near‐infrared laser and broadband optical amplifiers.This article is protected by copyright. All rights reserved

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“…Rare earth-doped materials have attracted considerable attention in recent years. They constitute promising hosts for technological applications in optical amplifiers, [1][2][3][4] solar cells, [5][6][7][8] lightemitting diodes (LEDs), [9][10][11][12][13][14][15] solid-state lasers, [16][17][18] up-conversion materials, [19][20][21] photonic devices, [22][23][24] nanothermometers, [25][26][27] and biomarkers for nanomedicine. [28][29][30][31] In the illumination and energy fields, white light-emitting diode (w-LED) devices are expected to become a major light source in the coming decades: w-LEDs present a long lifetime as well as high illumination efficiency and brightness, are reliable and environmentally friendly, provide flexible color mixing, and have a small volume, just to mention some of their outstanding advantages.…”

Section: Introductionmentioning

confidence: 99%

Red and near-infrared emitting phosphors based on Eu³⁺- or Nd³⁺-doped lanthanum niobates prepared by the sol–gel route

et al. 2022

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Spectroscopic and optical investigations on Er3+/Yb3+co-doped bismuth–boroleadlithium glasses for solid state laser applications

Cited by 11 publications

References 46 publications

Synthesis, structures, luminescent and color properties of polyethylmethacrylate (PEMA) polymers doped with rare earths

Synthesis, structures, luminescent and color properties of polyethylmethacrylate (PEMA) polymers doped with rare earths

Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr³⁺ and Tm³⁺ ions

Red and near-infrared emitting phosphors based on Eu³⁺- or Nd³⁺-doped lanthanum niobates prepared by the sol–gel route

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Spectroscopic and optical investigations on Er3+/Yb3+co-doped bismuth–boroleadlithium glasses for solid state laser applications

Cited by 11 publications

References 46 publications

Synthesis, structures, luminescent and color properties of polyethylmethacrylate (PEMA) polymers doped with rare earths

Synthesis, structures, luminescent and color properties of polyethylmethacrylate (PEMA) polymers doped with rare earths

Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr3+ and Tm3+ ions

Red and near-infrared emitting phosphors based on Eu3+- or Nd3+-doped lanthanum niobates prepared by the sol–gel route

Contact Info

Product

Resources

About

Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr³⁺ and Tm³⁺ ions

Red and near-infrared emitting phosphors based on Eu³⁺- or Nd³⁺-doped lanthanum niobates prepared by the sol–gel route