Er3+:Nd3+ concentration dependent spectral features of lithium-niobate-tellurite amorphous media

Nurhafizah, H.; Rohani, Md. Supar; Ghoshal, Sib Krishna

doi:10.1016/j.jnoncrysol.2016.04.002

Cited by 19 publications

(5 citation statements)

References 46 publications

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“…These values are summarized in Table 2. It can be seen that the value of the optical band gaps, direct and indirect are in the range of 2.476 -2.078 and 2.304 -1.529 eV, respectively close to the values obtained by previous researchers (Nurhafizah et al, 2016, Rao et al, 2014. Furthermore, it is observed that the optical band gaps (both direct and indirect) decreases with the increase in Nd 3+ content.…”

Section: Optical Absorption Energy Band Gap and Urbach's Energy Studiessupporting

confidence: 87%

Nd3+ CONCENTRATION DEPENDENT OPTICAL FEATURES OF GADOLINIUM BOROPHOSPHO-TELLURITE GLASSES

Bulus¹,

Sheyin²,

Yayock³

et al. 2020

OJPS

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Improving the optical response of glass host with two or more strong network formers via suitable controlled of rare earth ions is the key issue in the fabrication of optical based glass for solid state lasers and light emitting devices. Hence, we report the Nd3+ concentration dependent on optical parameters such as absorption edge, optical band gap (direct and indirect) and Urbach’s energy of gadolinium borophospho-tellurite glasses with chemical composition of 10Gd2O + 30B2O3 + 20P2O5 + (40-)TeO2 + Nd2O3 (where 0.0 ≤ x ≤ 1.0 mol%). The glass samples were synthesized by convectional melt quenching method and characterized through X-Ray Diffraction (XRD) and Ultraviolet Visible Near-Infrared (UV-Vis-NIR) measurements. The amorphous nature of these glasses was confirmed by X-Ray diffraction pattern while the UV-Vis-NIR spectra revealed six absorption peaks corresponding to the transition from ground level 4I9/2 to the various excited state of Nd3+ ions. It was found that the investigated range of Nd3+ doping concentrations has a great influence on aforementioned parameters. The excellent optical features established in the present glass host suggest their potentiality for solid-state lasers and other photonic applications. Bulus, I. | Department of Physics, School of Sciences, Kaduna State College of Education Gidan waya, Kafanchan, Nigeria

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Section: Optical Absorption Energy Band Gap and Urbach's Energy Studiessupporting

confidence: 87%

Nd3+ CONCENTRATION DEPENDENT OPTICAL FEATURES OF GADOLINIUM BOROPHOSPHO-TELLURITE GLASSES

Bulus¹,

Sheyin²,

Yayock³

et al. 2020

OJPS

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“…Physical Properties The material density ( ρ ), concentration of Nd 3+ ions inside the host matrix ( N ) and refractive index ( n ) has been calculated in previous paper [7] and it is used to calculate various physical properties of the glasses using relevant expressions.…”

Section: Theory A)mentioning

confidence: 99%

“…It is well known that pure TeO2 chemical does not form a glass on their own but when it is mixed with certain modifier Li2CO3, MgO, PbO and Nb2O5 etc, to become glass. The addition of Li2CO3 as network modifier, could enhance thermal, optical and electrical properties [5,7]. The addition of Nb2O5 as modifier could further improve the optical nonlinearity, vitrification and glass stability [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…The addition of Li2CO3 as network modifier, could enhance thermal, optical and electrical properties [5,7]. The addition of Nb2O5 as modifier could further improve the optical nonlinearity, vitrification and glass stability [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…It can easily be optically pumped but the efficient enhanced emissions cross-section is far from being achieved. To improve from this shortcoming, the addition of secondary RE ions may improve the emission efficiency by reduction of quenching centers and other by the incorporation of quantum dots or metallic nanoparticles in RE-doped glasses and glass-ceramics [6][7]. Among RE ions, Nd 3+ is the most efficient candidates for photonic devices.…”

Section: Introductionmentioning

confidence: 99%

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Racah Parameter and Nephelauxetic Effect on Er<sup>3+</sup>/Nd<sup>3+</sup> Codoped Lithium Niobate Tellurite Glass

Nurhafizah

Rohani

Taib

2021

NHC

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The modification of absorption characteristics in rare-earth doped tellurite glasses is important in photonics application. The Er3+/Nd3+ doped glasses of the form (69-x)TeO2-15Li2CO3-15Nb2O5-1Er2O3-(x)Nd2O3 with x= 0.4, 0.8 and 1.0 mol % are successfully made by using conventional melt-quenching technique. Physical properties such as polaron radius, interionic distance, field strength and average distance between acceptors and donors are determined. The absorption spectra reveal eleven prominent peaks centered at 6535.9 cm-1, 10245.9 cm-1, 11415.5 cm-1, 12437.8 cm-1, 13369.0 cm-1, 15267.2 cm-1, 15949.2 cm-1, 17127.1 cm-1, 19084.0 cm-1, 20449.9 cm-1 and 22271.7 cm-1 which corresponding to the transitions from ground state to various states of Nd3+ ions. The crystal field site increases from 8.120 to 8.169 cm-1 due to increase in contraction of Nd3+-ligand. The nephelauxetic function, increase 0.104 to 0.107. The increasing in value describes, the increasing in ionic bond from-0.0004 to-0.0011. The increment in exhibits the increase in the number of effective positive charge connected to neodymium atom and attracts the electrons from ligands as it increases from 1.0004 to 1.0011. These present glass shows the potential candidate of broadband amplifiers and lasers as it is comparable with other Nd3+ doped another host.

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Structural, luminescence and nonlinear optical properties of erbium doped barium tellurite glasses for photonic applications

Vani

Vinitha²,

Manikandan³

2023

J Mater Sci: Mater Electron

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Er3+:Nd3+ concentration dependent spectral features of lithium-niobate-tellurite amorphous media

Cited by 19 publications

References 46 publications

Nd3+ CONCENTRATION DEPENDENT OPTICAL FEATURES OF GADOLINIUM BOROPHOSPHO-TELLURITE GLASSES

Nd3+ CONCENTRATION DEPENDENT OPTICAL FEATURES OF GADOLINIUM BOROPHOSPHO-TELLURITE GLASSES

Racah Parameter and Nephelauxetic Effect on Er<sup>3+</sup>/Nd<sup>3+</sup> Codoped Lithium Niobate Tellurite Glass

Structural, luminescence and nonlinear optical properties of erbium doped barium tellurite glasses for photonic applications

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