Spectroscopic investigations of Ho3+/Er3+:CaYAlO4 and Eu3+/Er3+:CaYAlO4 crystals for 2.7μm emission

Lv, Shaozhen; Zhu, Zhaojie; Wang, Yan; You, Zhenyu; Li, Jianfu

doi:10.1016/j.jlumin.2013.06.044

Cited by 30 publications

(8 citation statements)

References 19 publications

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“…Since thin samples were used in our experiment, and the samples surfaces were ground to avoid internal reflection, the discrepancy is ignored here. The value we obtained is comparable with that in 50 at% doped Er:Y 3 Al 5 O 12 (W 1 : 2.5 Â 10 À17 cm 3 /s and W 2 : 3.0 Â 10 À17 cm 3 /s) [11]. The larger value of W 2 than W 1 is consistent well with the experimental fact that the decay curve of 1565 nm is more close to single exponential than 2725 nm, which is similar to the reported work [14].…”

Section: Crystalssupporting

confidence: 87%

“…The lifetimes were calculated using the formula in literature [5] and then listed in Table 2. The decay times of the Er 3+ :CaYAlO 4 with 30% doping were slightly different from our previous work [11] since different part of grown crystal was used here. As it is shown in Table 1, the segregation coefficient of 30 at% Er 3+ :CaYAlO 4 is 0.757, that means during the crystal grown procedure the melt concentration changes from time to time.…”

Section: Results and Discussmentioning

confidence: 65%

See 1 more Smart Citation

Role of Er3+ concentration in spectroscopic and laser performance of CaYAlO4 crystal

Wang

Zhu

et al. 2015

Optical Materials

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Section: Crystalssupporting

confidence: 87%

Section: Results and Discussmentioning

confidence: 65%

Role of Er3+ concentration in spectroscopic and laser performance of CaYAlO4 crystal

Wang

Zhu

et al. 2015

Optical Materials

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“…It is well known that the equivalent thermal lens is a critical parameter for the cavity design of diode-pumped all-solid-state lasers [16] . The thermal conductivities of the Nd:CYA crystal are 3.7 W/(m • K) (parallel to a axis) and 3.3 W/(m • K) (parallel to c axis) [17][18][19] , and the thermo-optical coefficients are −7.8 × 10 −6 K −1 (parallel to a axis) and −8.7 × 10 −6 K −1 (parallel to c axis) [20] . According to Ref.…”

Section: Experimental Designmentioning

confidence: 99%

Realization of a continuous-wave single-frequency tunable Nd:CYA laser

Yang

Jin

et al. 2022

中国光学快报

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We demonstrate an all-solid-state continuous-wave (CW) single-frequency tunable 1.08 μm laser, which is realized by employing a disordered laser medium Nd:CaYAlO 4 (Nd:CYA) crystal. The maximal output power of single-frequency 1.08 μm laser is 1 W. By rotating the incident angle of the intracavity etalon (IE), the maximal tuning range of 183.71 GHz is achieved. After the IE is locked to the oscillating longitudinal mode of the laser, the continuous tuning range of 60.72 GHz for 1.08 μm laser is achieved by scanning the cavity length. To the best of our knowledge, this is the first demonstration of a CW single-frequency widely tunable 1.08 μm laser based on Nd:CYA crystal.

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“…A host that meets these requirements is CaYAlO 4 . Such crystalline compound presents low phonon´s energy, around 322 cm À 1 [24], that is lower than in others hosts, such as NaGd(WO 4 ) 2 , and NaY(MoO 4 ) 2 (around 900 cm À 1 ) [25,26], LaPO 4 (about 1050 cm À 1 ) [27] and YVO 4 (890 cm À 1 ) [28]. It has a tetragonal structure formed by [AlO 6 ] 3 À octahedron presenting an inversion center i, while the Ca 2 þ and Y 3 þ are randomly located over the same sites of C 4v symmetry [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

“…Souriau et al described the spectroscopic behavior of single crystals of CaYAlO 4 : Er 3 þ / Yb 3 þ obtained by means of this technique [34]. Lv et al obtained single crystals of CaYAlO 4 :Ho 3 þ /Er 3 þ and CaYAlO 4 :Eu 3 þ /Er 3 þ and carried out a study on application of this system as laser in the medium infrared region, around 2.7 mm [24]. Zhou et al synthesized a single crystal of CaYAlO 4 :Er 3 þ and analyzed their spectroscopic properties in the visible and infrared region [29].…”

Section: Introductionmentioning

confidence: 99%

Broadened band C-telecom and intense upconversion emission of Er3+/Yb3+ co-doped CaYAlO4 luminescent material obtained by an easy route

Perrella

Schiavon

Pécoraro

et al. 2016

Journal of Luminescence

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This work reports on photoluminescence properties of Er 3 þ /Yb 3 þ co-doped CaYAlO 4 in powder form, synthesized by an easy route using citric acid as ligand to form complex precursor. The 1.2 mol% of Yb 3 þ was fixed, while the amount of Er 3 þ changed in 0.5, 1.5 and 3 mol% in order to evaluate the photoluminescence properties as a function of the Er 3 þ concentration. The structural and thermal properties of the viscous solutions and powder materials obtained after the heat-treatment at 1000, 1100 and 1200°C for 4 h were evaluated by XRD, FTIR and TG/DTA analysis. The results showed the formation of pure CaYAlO 4 tetragonal crystalline phase after heat-treatment at 1100°C and 1200°C. Intense emission in the visible region under excitation at 980 nm was attributed to upconversion process, from Er 3 þ intraconfigurational f-f transitions. The emissions were assigned to the transitions 2 H 11/2-4 I 15/2 and 4 S 3/ 2-4 I 15/2 (green region), and 4 F 9/2-4 I 15/2 (red region) energy levels. The ratio between emission band integrated areas assigned to the red and green emissions increased as a function of Er 3 þ concentration. Under excitation at 980 nm with 100 mW of power pump, the materials also showed intense and broadening emission with maximum at 1520 nm with FWHM of 84.74 nm for the sample CaYAlO 4 :1.5% Er 3 þ /1.2% Yb 3 þ heat-treated at 1000°C for 4 h. The photoluminescence properties showed that these materials are promising for use in C-telecom band as optical amplifier biological marker or/and solidstate laser devices under excitation at 980 nm.

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Spectroscopic investigations of Ho3+/Er3+:CaYAlO4 and Eu3+/Er3+:CaYAlO4 crystals for 2.7μm emission

Cited by 30 publications

References 19 publications

Role of Er3+ concentration in spectroscopic and laser performance of CaYAlO4 crystal

Role of Er3+ concentration in spectroscopic and laser performance of CaYAlO4 crystal

Realization of a continuous-wave single-frequency tunable Nd:CYA laser

Broadened band C-telecom and intense upconversion emission of Er3+/Yb3+ co-doped CaYAlO4 luminescent material obtained by an easy route

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