Growth and spectroscopic properties of Yb–Ho co-doped CNGG crystal

Zhou, Youshi; Chen, Junxian; Dong, Liang; Cao, Shuxuan; Zhang, Yuxia; Han, Wenjuan; Xu, Honghao; Liu, Junhai

doi:10.1016/j.optmat.2021.110998

Cited by 9 publications

(3 citation statements)

References 36 publications

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“…The value of Ω4/Ω6 for Ho 3+ in PMN-32PT crystal is 3.273, which is larger than that of laser crystals as well as LiNbO3:In 3+ /Ho 3+ [11], YAlO3:Ho 3+ [12], YAG:Ho 3+ [13], and Gd3(Al,Ga)5O12:Ho 3+ /Yb 3+ [14]. It is close to that of CNGG:Ho 3+ and GdScO3:Ho 3+ crystals [16,17]. The high spectroscopic quality factor indicates the PMN-32PT:Ho 3+ /Yb 3+ is a promising laser crystal.…”

Section: Judd-ofelt Analysismentioning

confidence: 59%

“…The fluorescence lifetime of 5 F5 level were fitting to be 92.568 μs. Then, the quantum efficiency (η) obtained by Equation ( 16): (16) The obtained quantum efficiency η = 66%. Bigger quantum efficiency means more excited ions will deexcitation through laser transition emitting laser.…”

Section: Fluorescence Propertiesmentioning

confidence: 99%

“…The main spectroscopic characteristics, including radiative transition probability, radiative lifetimes, branching ratios, and emission cross section, can be obtained by applying Judd-Ofelt theory. Judd-Ofelt treatment is widely applied to predict the spectroscopic characteristics for laser crystals [10][11][12][13][14][15][16][17][18][19]. However, relevant Judd-Ofelt treatment on the new-type ferroelectric crystals doping with rare earth ions could not be found in the previous literature.…”

Section: Introductionmentioning

confidence: 99%

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Ferroelectric and Spectroscopic Properties of Ho3+/Yb3+ Co-Doped Pb(Mg1/3Nb2/3)O3-32PbTiO3 Crystal

Zhang

Wang³

et al. 2022

Crystals

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In order to design a new multifunctional crystal with excellent ferroelectric and spectroscopic properties, experiments were carried out for Ho3+/Yb3+ co-doped Pb(Mg1/3Nb2/3)O3 -32PbTiO3 ferroelectric crystal using the flux method, the coercive field Ec of which is 11.86 kV/cm. Up-conversion luminescence emission bands, including an intense green emission band at 553 nm, a red band at 663 nm, and a weak infra-red band at 755 nm, are generated at 980 nm excitation. The main spectroscopic parameters, including radiative transition probability A(J’ − J), radiative lifetimes τrad, and branching ratios β, were predicted by applying Judd–Ofelt treatment. The obtained J-O intensity parameters are Ω2 = 0.531 × 10−20 cm2, Ω4 = 1.738 × 10−20 cm2, Ω6 = 0.530 × 10−20 cm2. The radiative lifetime of 5I7 level is 5.45 ms. The fluorescence lifetime of is 5F5 is 92.568 μs. The investigations show that Ho3+/Yb3+ co-doped Pb(Mg1/3Nb2/3)O3-0.32PbTiO3 crystal is a new type of multifunctional crystal integrating ferroelectric and spectroscopic properties, which has a potential application in the developing innovative multifunctional devices and lasers.

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