Spectroscopic studies of Sm3+ ions doped alkaline-earth chloro borate glasses for visible photonic applications
- Department of Physics, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur (Dt), 522 502, A.P (India)
- Department of Applied Physics, Delhi Technological University, Bawana Road, New Delhi, 110 042 (India)
Highlights: • AECB glasses doped with Sm{sup 3+} ions were synthesized by melt quenching technique. • Bonding parameters reveal bonding nature between Sm-Oxygen as ionic. • Energy transfer leads to shrink in experimental decay times of Sm{sup 3+} ions. • AECB{sub 0}.5Sm glass is apt for designing reddish orange optoelectronic devices. - Abstract: A new series of Sm{sup 3+} ions doped Alkaline-Earth Chloro Borate (AECB) glasses with compositions (25-x)CaO-5SrO-10BaCl{sub 2}-60B{sub 2}O{sub 3}-xSm{sub 2}O{sub 3} (x = 0.1 mol%–2.5 mol%) were prepared by a conventional melt quenching technique and characterized with XRD, absorption, excitation, photoluminescence (PL) and fluorescence decay spectral measurements. From the absorption spectra, Judd-Ofelt (J-O) intensity parameters (Ω{sub 2}, Ω{sub 4}, Ω{sub 6}) have been measured. The PL spectra under 402 nm excitation show bright reddish-orange emission at 602 nm. The decay spectral profiles of {sup 4}G{sub 5/2} → {sup 6}H{sub 7/2} (602 nm) luminescence transition used to measure experimental lifetimes (τ{sub R}). The Inokuti-Hirayama model used to understand the predominant energy transfer mechanism involved in the prepared glasses. The evaluated emission cross-sections (σ{sub se}), branching ratios (β{sub R}) and quantum efficiency (η) allows us to contemplate that the Sm{sup 3+} ions doped AECB glasses are aptly suitable as potential gain mediums for visible reddish orange lasers pumped directly by commercially available 405 nm laser diodes.
- OSTI ID:
- 22805167
- Journal Information:
- Materials Research Bulletin, Vol. 105; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTRA
BONDING
BORATES
BRANCHING RATIO
CALCIUM OXIDES
CROSS SECTIONS
DOPED MATERIALS
ENERGY TRANSFER
EXCITATION
FLUORESCENCE
GLASS
LASERS
OPTICAL PUMPING
OPTOELECTRONIC DEVICES
OXYGEN
PHOTOLUMINESCENCE
QUANTUM EFFICIENCY
QUENCHING
SAMARIUM
SAMARIUM IONS
SPECTROSCOPY
VISIBLE SPECTRA
X-RAY DIFFRACTION