Structural and spectroscopic investigations of neodymium-doped strontium borophosphate glass.

Autor: Pagoti R; Homi Bhabha National Institute, Mumbai, India.; Safety Research Institute, Atomic Energy Regulatory Board, India., Panda S; Homi Bhabha National Institute, Mumbai, India.; Safety Quality & Resource Management Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India., Patchapureddy V; Homi Bhabha National Institute, Mumbai, India.; Safety Quality & Resource Management Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India., Padhi RK; Safety Quality & Resource Management Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India., Subramanian B; Material Chemistry and Metal Fuel Cycle Group, India., Jena H; Homi Bhabha National Institute, Mumbai, India.; Material Chemistry and Metal Fuel Cycle Group, India., Panigrahi BS; Homi Bhabha National Institute, Mumbai, India.; Safety Quality & Resource Management Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India.
Jazyk: angličtina
Zdroj: Luminescence : the journal of biological and chemical luminescence [Luminescence] 2021 Nov; Vol. 36 (7), pp. 1706-1715. Date of Electronic Publication: 2021 Jul 04.
DOI: 10.1002/bio.4112
Abstrakt: Neodymium-doped glass finds application in lasers with high energy and low pulse width. In the present study, a series of Nd 3+ ions (0-2 mol%)-doped strontium borophosphate (SBP) glass samples was prepared through the conventional melt quench method. A broad peak in the X-ray diffraction spectrum confirmed the formation of a single-phase amorphous borophosphate glass. Fourier transform infrared spectra of the doped and undoped glass samples indicated the presence of borate and phosphate groups that form the anionic network. The thermal properties of the glass samples were determined from thermogravimetry/differential thermal analysis. Photoluminescence and ultraviolet-visible light techniques were used to investigate the optical properties of the as-prepared SBP:Nd glass. The Judd-Ofelt (JO) intensity parameters Ω λ (2, 4, 6), stimulated emission cross-section, branching ratios, and transition probabilities of the Nd 3+ -doped glass were obtained through the JO analysis. Characteristic Nd 3+ emission peaks were observed at 1330, 1060, and 876 nm, corresponding to the 4 F 3/2 → 4 I S/2 (S = 13, 11, and 9) transitions, respectively. The suitability of SBP:Nd (0.5 mol%) glass for use in solid-state lasers was demonstrated by its intense luminescence, high transition probability, high emission cross-section, optical gain, and luminescence branching ratio.
(© 2021 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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