Polarized spectroscopic properties of Nd3+-doped KGd(WO4)2 single crystal

Chen, Yujin; Yan, Lin; Gong, Xinghong; Tan, Qiguang; Zhuang, Jian; Luo, Zundu; Huang, Yinbo

doi:10.1016/j.jlumin.2006.10.019

Cited by 32 publications

(16 citation statements)

References 38 publications

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“…The lifetime of this state, was nearly independent of the temperature in the 77-450 K range. This value agrees well with the one reported in [26] at room temperature, 117 µs. Based on the radiative lifetime for the 4 F3/2 manifold (111 µs [26]), we conclude that the fluorescence quantum efficiency for this manifold is close to unity.…”

Section: Optical Spectroscopysupporting

confidence: 93%

“…This allowed us to reconstruct the shape of the absorption band for 77-450 K as shown in Fig. 3 The values of σabs determined in the present study at room temperature are consistent with the results published by Chen et al [26].…”

Section: Optical Spectroscopysupporting

confidence: 89%

“…Detailed reconsideration of spectroscopic properties of Nd:KGW is motivated by a discrepancy in the results reported to date [26,27], as well as the lack of information with regard to temperature-dependence of the absorption and stimulated-emission (SE) cross-sections for low and elevated temperatures. The former are of practical importance for cryogenic lasers, a concept that can mitigate the main drawback of Nd:KGW (i.e., strong thermo-optic aberrations).…”

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confidence: 99%

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Temperature-dependent spectroscopy and microchip laser operation of Nd:KGd(WO4)2

et al. 2016

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High-resolution absorption and stimulated-emission cross-section spectra are presented for monoclinic Nd:KGd(WO4)2 (Nd:KGW) laser crystals in the temperature range 77-450 K. At room-temperature, the maximum stimulated emission cross-section is σSE =21.4×10 -20 cm 2 at 1067.3 nm, for light polarization E || Nm. The lifetime of the 4 F3/2 state of Nd 3+ in KGW is practically temperature independent at 115±5 µs. Measurement of the energy transfer upconversion parameter for a 3 at.% Nd:KGW crystal proved that this was significantly smaller than for alternative hosts, ~2.5×10 -17 cm 3 /s. When cut along the Ng optical indicatrix axis, the Nd:KGW crystal was configured as a microchip laser, generating ~4 W of continuous-wave output at 1067 nm with a slope efficiency of 61% under diodepumping. Using a highly-doped (10 at.%) Nd:KGW crystal, the slope efficiency reached 71% and 74% when pumped with a laser diode and a Ti:Sapphire laser, respectively. The concept of an ultrathin (250 µm) Nd:KGW microchip laser sandwiched between two synthetic diamond heat-spreaders is demonstrated.

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Section: Optical Spectroscopysupporting

confidence: 93%

Section: Optical Spectroscopysupporting

confidence: 89%

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confidence: 99%

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Temperature-dependent spectroscopy and microchip laser operation of Nd:KGd(WO4)2

et al. 2016

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“…As maximum polarized absorption and emission cross sections in Nd:KGdW correspond to light polarization E N m [24], the axes of investigated laser rods were positioned in the N p -N g plane and made different angles with the N g optical indicatrix axis.…”

Section: Introductionmentioning

confidence: 99%

Thermal lensing study and athermal directions in flashlamp-pumped Nd:KGd(WO4)2 laser crystal

et al. 2011

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Thermal lensing has been studied by a probe beam technique in flashlamp-pumped Nd:KGdW laser rods with rod axes positioned in the N p -N g plane and making different angles with the N g optical indicatrix axis. It was found that the orientation of principal meridional planes of the astigmatic thermal lens in Nd:KGdW corresponds to the directions with maximum and minimum values of thermalexpansion coefficient in the plane perpendicular to the rod axis. The athermal Nd:KGdW laser crystal orientation defined as orientation with weak positive near spherical thermal lens has been determined to make an angle of 30 • -40 • with the N g axis for light polarization E N m .

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“…High physical and optical anisotropy resulting from low symmetry structure, possibility of high doping levels due to close ionic radii without luminescence quenching and significant lattice distortions as well as a wide range of laser emission, i.e. $ 1 μm for Yb 3 þ , and $ 2 μm for Ho 3 þ and Tm 3 þ ions are the advantages of these materials [23][24][25][26][27][28][29][30][31][32][33]. Physical properties of alkali and trivalent rare earth double molybdates and tungstates both single crystals and powders were analyzed by many authors [34][35][36][37][38][39][40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Preparation, thermal stability and magnetic properties of new AgY1−xGdx(WO4)2 ceramic materials

Tomaszewicz

Fuks

Typek

et al. 2015

Ceramics International

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Polarized spectroscopic properties of Nd3+-doped KGd(WO4)2 single crystal

Cited by 32 publications

References 38 publications

Temperature-dependent spectroscopy and microchip laser operation of Nd:KGd(WO4)2

Temperature-dependent spectroscopy and microchip laser operation of Nd:KGd(WO4)2

Thermal lensing study and athermal directions in flashlamp-pumped Nd:KGd(WO4)2 laser crystal

Preparation, thermal stability and magnetic properties of new AgY1−xGdx(WO4)2 ceramic materials

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