Research Progress on Lu2O3 Based Laser Transparent Ceramics

Abstract

Abstract: Sesquioxide Lu₂O₃ has excellent thermodynamic properties, low phonon energy and strong crystal field characteristics, making it one of the excellent candidates for wideband high-power laser matrix materials in the near-infrared and mid-infrared spectra (1~3 μm), and attracting widespread attention in recent years. Since Lu₂O₃ has a melting point of up to 2 450 ℃, growing single crystal is extremely difficult, limiting its application development. However, Lu₂O₃ belongs to the cubic crystal system and is optically isotropic, making Lu₂O₃-based transparent ceramics a viable option. Compared to single crystal, transparent ceramics can be sintered at lower temperatures (60%~80% of the melting point of crystals) to prepare large-size samples, while the sintering cycle is greatly reduced and more conducive to mass production, so the preparation of Lu₂O₃-based transparent ceramics as a new type of laser material has the potential for a wider range of applications in scientific research, industrial production and daily life. In this paper, the preparation technology and properties of Lu₂O₃-based laser transparent ceramics doped with rare earth ions (Nd³⁺, Er³⁺, Yb³⁺, Tm³⁺, Ho³⁺) are reviewed.In the future, the development of half-oxide Lu₂O₃-based laser ceramics will be focused on large size, high power output, low scattering characteristics, high thermal stability, and composite structure design to promote the development of high-performance solid-state lasers.

Key words: transparent ceramics, Lu₂O₃, laser ceramics, sesquioxide, solid-state laser, laser gain medium

CLC Number:

TB34

ZHAO Wenhai, TAO Shixu, TONG Siyi, TANG Jian, ZUO Chuandong, CAO Yongge, MA Chaoyang. Research Progress on Lu₂O₃ Based Laser Transparent Ceramics[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2024, 53(12): 2043-2058.

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Research Progress on Lu₂O₃ Based Laser Transparent Ceramics

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