Growth and characterization of optical and thermal properties of LiGdF4 single crystal

Морозов, О. А.; Korableva, S. L.; Nurtdinova, Larisa A.; Kyashkin, V. M.; Попов, П. А.; Klimovitskii, Alexander E.; Pudovkin, M.S.; Семашко, В. В.

doi:10.1016/j.optmat.2023.113490

Cited by 2 publications

(2 citation statements)

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“…Optically perfect, single LiGd x Y 1−x F 4 crystals were grown using the Bridgman-Stockbarger technique, using a growth furnace with a specially designed heating unit. The comprehensive crystal growth procedure is described in our previous work [7]. To record the absorption spectra, a DFS-452 spectrograph (1200 ruling/mm lattice, 0.5-0.2 nm/mm inverse linear dispersion, 120,000 theoretical resolution of the spectrograph, spectral resolution 0.3 nm) and a broadband light source (deuterium lamp) were used.…”

Section: Methodsmentioning

confidence: 99%

“…Rare-earth-doped and un-doped nano-and microsized LiREF 4 (RE = rare-earth ions) crystals are considered highly promising materials for quantum electronics, solar cells, optical temperature sensing, and bioimaging [1][2][3][4][5][6][7][8]. The doping-rare-earth ions-are characterized by a partially filled 4f shell that is effectively shielded by 5 s 2 and 5 p 6 orbitals.…”

Section: Introductionmentioning

confidence: 99%

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LiGdxY1−xF4 and LiGdF4:Eu3+ Microparticles as Potential Materials for Optical Temperature Sensing

Oleynikova,

Morozov,

Korableva

et al. 2024

Ceramics

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In this work, the physical characterization of LiGdxY1−xF4 (x = 0.05, 0.3, 0.7, and 1.0) and LiGdF4:Eu3+ microparticles was performed. The distribution coefficient of LiGdxY1−xF4 (x = 0.05) was determined for the first time (0.84). Based on kinetic characterization data, the LiGdF4 sample was chosen for further Eu3+ doping (0.1 and 1.0 at.%). For the LiGdF4:Eu3+ sample, Eu3+ emission was clearly observed under the excitation of Gd3+. This fact indicates an effective energy transfer from Gd3+ to Eu3+. The temperature-dependent spectral characterization of the LiGdF4:Eu3+ (1.0%) sample revealed that in the 30–250 K temperature range, a broad emission peak is evidenced. Its intensity sharply increases with the temperature decrease. We made a suggestion that this phenomenon is related to the irradiation-induced defects. The integrated luminescence intensity ratio of this broad peak and the Eu3+ emission were taken as temperature-dependent parameters. The sensitivity values are very competitive, and the first maximum occurs at 174 K (3.18%/K). The kinetic characteristics of both Gd3+ and Eu3+ did not demonstrate a notable temperature dependence. The LiGdF4:Eu3+ sample showed the possibility of being used as an optical temperature sensor, operating in the cryogenic temperature range.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

LiGdxY1−xF4 and LiGdF4:Eu3+ Microparticles as Potential Materials for Optical Temperature Sensing

Oleynikova,

Morozov,

Korableva

et al. 2024

Ceramics

Self Cite

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Potential Laser Crystal of Zn₄B₆O₁₃:Mn²⁺ with Low Thermal Expansion and High Thermal Conductivity: Single-Crystal Growth and Characterization

Liang,

Li,

Chen

et al. 2024

Crystal Growth & Design

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Laser crystals, serving as the laser gain medium, are key materials in all-solid-state lasers. Due to considerable thermal expansion and low thermal conductivity, the performance of conventional laser crystals strongly depends on thermal management systems to improve the laser quality and power, which inevitably restricts the development of laser technology. In this work, a new potential laser crystal of Mn 2+ -doped Zn 4 B 6 O 13 (ZBO) with a low thermal expansion and high thermal conductivity was grown and characterized. The strong luminescence emission at 539 nm in ZBO:Mn 2+ was observed, with a long lifetime of 16.20(7) ms, and the corresponding absorption bands in the range of 410−460 nm fall within the spectra of GaN-or InGaN-based laser diodes. In variable-temperature fluorescence spectra, promoted by relaxation on the parityforbidden 4 T 1 -to-6 A 1 transition from the increased phonon number, an abnormal negative thermal quenching was manifested below 140 K, with the lifetime consistently greater than 10 ms over the whole temperature range of 80−500 K. Meanwhile, ZBO:Mn 2+ manifests very low thermal expansion (3.1 MK −1 ) and high thermal conductivity (27.44(6) W/(m•K)) at room temperature (300 K). These excellent thermal properties, combined with good optical properties, make ZBO:Mn 2+ an outstanding gain medium for green laser generation. Our study confirms that ZBO is a promising laser matrix crystal.

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Growth and characterization of optical and thermal properties of LiGdF4 single crystal

Cited by 2 publications

References 31 publications

LiGdxY1−xF4 and LiGdF4:Eu3+ Microparticles as Potential Materials for Optical Temperature Sensing

LiGdxY1−xF4 and LiGdF4:Eu3+ Microparticles as Potential Materials for Optical Temperature Sensing

Potential Laser Crystal of Zn₄B₆O₁₃:Mn²⁺ with Low Thermal Expansion and High Thermal Conductivity: Single-Crystal Growth and Characterization

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Growth and characterization of optical and thermal properties of LiGdF4 single crystal

Cited by 2 publications

References 31 publications

LiGdxY1−xF4 and LiGdF4:Eu3+ Microparticles as Potential Materials for Optical Temperature Sensing

LiGdxY1−xF4 and LiGdF4:Eu3+ Microparticles as Potential Materials for Optical Temperature Sensing

Potential Laser Crystal of Zn4B6O13:Mn2+ with Low Thermal Expansion and High Thermal Conductivity: Single-Crystal Growth and Characterization

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Potential Laser Crystal of Zn₄B₆O₁₃:Mn²⁺ with Low Thermal Expansion and High Thermal Conductivity: Single-Crystal Growth and Characterization