Structural, spectroscopic and optical gain of Nd3+ doped fluorophosphate glasses for solid state laser application
| Main Authors: | Rajagukguk, Juniastel, Situmorang, Rappel, Fitrilawati, , Djamal, Mitra |
|---|---|
| Format: | Article PeerReviewed Book |
| Bahasa: | ind |
| Terbitan: |
https://www.elsevier.com/locate/jlumin
, 2019
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| Subjects: | |
| Online Access: |
http://digilib.unimed.ac.id/41053/1/full%20text.pdf http://digilib.unimed.ac.id/41053/ https://www.sciencedirect.com/science/article/abs/pii/S0022231319308208 |
Daftar Isi:
- Nd3+ doped fluorophosphate glasses (PANCaFN) with chemical composition of (50-x) P2O5–12Na2O–8Al2O3–10CaO–10KF–10CaF2-xNd2O3 (where x = 0, 0.5, 1.0, 1.5 and 2.0 mol%) have been successfully prepared by melt-quenching method and characterized by several techniques. The optical absorption measurements exhibited signature of Nd3+ absorption bands in fluorophosphate glasses showed. The spectroscopic analysis have been carried out using Judd-Ofelt parameters and oscillator strength to determine radiative properties such as radiative transition probability (AR), branching ratio (βr), lifetime (τ), emission cross-section (σe) and quantum efficiency (η). The highest emission intensity was found at 1060 nm for transition 4F3/2 → 4I13/2 under excitation wavelength of 582 nm for PANCaFN2. The emission cross section, branching ratio and lifetime were evaluated and showed 4.92 × 10−20 cm2, 0.7 and 200 μs, respectively. More importantly, the outstanding quantum efficiency of PANCaFN2 could reach to 98.92%. The addition of Nd3+ ion into fluorophosphate glass could enhance the spectroscopic properties which could play as a potential candidate for solid state applications. Theoretical optical gain evaluation and experimental calculation confirmed that PANCaFN2 had the higher gain than other samples.