Issue 7, 2021

Optimized growth of high length-to-diameter ratio Lu2O3 single crystal fibers by the LHPG method

Abstract

Lu2O3 crystals have attracted intense attention due to their great potential in the field of high power solid-state lasers. Lu2O3 single crystal fibers (SCFs) with a length-to-diameter ratio of >200 : 1 were successfully grown by the laser heated pedestal growth (LHPG) method for the first time. The relationships between the crystal diameter and thermal stress were investigated in detail. Crystal cracking was effectively solved by reducing the diameter of the crystal fiber. Besides, the influence of the growth atmosphere on the crystal growth was also demonstrated. The crystals grown in a mixture of 95% O2 and 5% Ar were colorless and transparent. The XRD pattern showed that the phase of Lu2O3 was pure, and the crystal quality along the axial and radial directions was measured by Laue back-reflection measurements. Meanwhile, the diameter fluctuations of the obtained Lu2O3 crystal fibers were further reduced by using optimized source rods.

Graphical abstract: Optimized growth of high length-to-diameter ratio Lu2O3 single crystal fibers by the LHPG method

Article information

Article type
Paper
Submitted
27 Sep 2020
Accepted
11 Jan 2021
First published
02 Feb 2021

CrystEngComm, 2021,23, 1657-1662

Optimized growth of high length-to-diameter ratio Lu2O3 single crystal fibers by the LHPG method

N. Zhang, Y. Yin, J. Zhang, T. Wang, S. Wang, Y. Yin, X. Fu, Z. Jia and X. Tao, CrystEngComm, 2021, 23, 1657 DOI: 10.1039/D0CE01415J

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