Spectroscopic properties and Judd-Ofelt analysis of Nd doped GdVO4 single crystals grown by OFZ method

Soharab, M.; Bhaumik, Indranil; Bhatt, R.; Saxena, A.; Khan, S.; Karnal, A.K.

doi:10.1016/j.optmat.2019.04.059

Cited by 15 publications

(4 citation statements)

References 25 publications

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“…Two main excitation peaks were observed at 595 and 808 nm, as in the absorption spectra, and are related to 4 I 9/2 → 4 G 5/2 and to 4 I 9/2 → 4 F 5/2 + 2 H 9/2 electronic transitions, respectively. 51 Albeit the two peaks appear to be equally intense, the 808 nm component ( 4 I 9/2 → 4 F 5/2 + 2 H 9/2 transition) is the one of major interest because it lies in the BW-I and corresponds to the emission of diode lasers 18 . Emission spectra were recorded using an excitation wavelength of 808 nm.…”

Section: Resultsmentioning

confidence: 99%

NIR emitting GdVO4:Nd nanoparticles for bioimaging: The role of the synthetic pathway

Carbonati

Cionti

Cosaert

et al. 2021

Journal of Alloys and Compounds

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Section: Resultsmentioning

confidence: 99%

NIR emitting GdVO4:Nd nanoparticles for bioimaging: The role of the synthetic pathway

Carbonati

Cionti

Cosaert

et al. 2021

Journal of Alloys and Compounds

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“…(20)(21)(22)(23) To expand the investigation on NIR-emitting scintillators, we synthesized Nd-doped GdVO 4 single crystals by the floating zone (FZ) method and evaluated their photoluminescence (PL) and scintillation properties in this study. Nd-doped GdVO 4 single crystals were studied because the vanadates are well-known phosphor and laser materials, (24)(25)(26)(27) and the scintillation properties of Nd-doped YVO 4 have already been studied. (28) However, to our knowledge, there have been no studies on the NIR scintillation properties of Nd-doped GdVO 4 .…”

Section: Introductionmentioning

confidence: 99%

X-ray-induced Luminescence Properties of Nd-doped GdVO4

Akatsuka¹,

Kimura²,

Onoda³

et al. 2021

Sensors and Materials

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Nd-doped GdVO 4 single crystals were synthesized and their photoluminescence and scintillation properties were evaluated. The Nd-doped samples showed scintillation due to the 4f-4f transitions of Nd 3+ with peaks at around 900, 1060, and 1320 nm. In addition, we evaluated the relationship between the scintillation signal intensity and the X-ray exposure dose rate for dosimetric application. All the Nd-doped samples demonstrated high sensitivity with a dynamic range from 0.006 to 60 Gy/h.

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“…[1][2][3] Owing to the optical properties of the Ln 3+ -doped glasses and with the prompt evolution of the diode-pumped solid-state lasers, investigation on newly developed laser glasses has gained more attention. 4,5 Among the various Ln 3+ ions, Nd 3+ ion is one of the important and most extensively studied ions for near-infrared (NIR) lasers as it emits very useful wavelengths at 880 nm, 1050 nm, 1350 nm and 1800 nm corresponding to 4 F 3/2 fi 4 I J/2 (J = 9, 11, 13 and 15) transitions, respectively. Out of these four transitions, the 4 F 3/2 fi 4 I 11/2 transition at 1050 nm is the most intense one and has several practical applications.…”

Section: Introductionmentioning

confidence: 99%

Optical Absorption and NIR Photoluminescence of Nd3+-Activated Strontium Phosphate Glasses

Prasad¹,

Vijaya

Babu³

et al. 2020

Journal of Elec Materi

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Strontium phosphate glasses with various concentrations of Nd 2 O 3 have been prepared by melt quenching method. Absorption and photoluminescence spectra and lifetime measurements have been carried out to obtain the optical properties of these glasses. From the absorption spectrum, intensity and radiative parameters have been evaluated using Judd-Ofelt analysis. Nearinfrared photoluminescence spectra consist of three bands centered at 875 nm, 1056 nm and 1327 nm, among which the highest intensity has been noticed for the band at 1056 nm that corresponds to the 4 F 3/2 fi 4 F 11/2 transition of Nd 3+ ion. Laser parameters such as branching ratio, band width, stimulated emission cross section and gain bandwidth for the 4 F 3/2 fi 4 F 11/2 transition are found to be 0.52, 28 nm, 2.31 9 10 À20 cm 2 and 6.5 9 10 À26 cm 3 , respectively. Decay curves of the 4 F 3/2 level of Nd 3+ ions exhibit a single exponential nature at lower concentrations, while they become non-exponential at higher concentrations (‡ 0.1 mol.%) due to non-radiative energy transfer processes. This feature is also associated with shortening of lifetime from 307 ls to 82 ls when the Nd 3+ ion concentration increases from 0.1 mol.% to 4.0 mol.%. The results have been compared with those of barium and magnesium phosphate glasses and commercial glasses. The results suggest that these glasses have potential applications as infrared laser materials at 1.05 lm.

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Spectroscopic properties and Judd-Ofelt analysis of Nd doped GdVO4 single crystals grown by OFZ method

Cited by 15 publications

References 25 publications

NIR emitting GdVO4:Nd nanoparticles for bioimaging: The role of the synthetic pathway

NIR emitting GdVO4:Nd nanoparticles for bioimaging: The role of the synthetic pathway

X-ray-induced Luminescence Properties of Nd-doped GdVO4

Optical Absorption and NIR Photoluminescence of Nd3+-Activated Strontium Phosphate Glasses

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