Thermal properties of a Nd:LuVO4 crystal

✍ Scribed by Donggang Ran; Hairui Xia; Shangqian Sun; Fengqin Liu; Zongcheng Ling; Wenwei Ge; Huaijin Zhang; Jiyang Wang

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 170 KB
• Volume: 42
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.200710932

✦ Synopsis

A Nd-doped lutetium orthovanadate Nd:LuVO 4 crystal has been grown using a modified Czochralski method. The thermal properties of this crystal have been studied by measuring the thermal expansion, specific heat and thermal diffusivity. The thermal expansion coefficients are α 11 = 1.7 × 10 -6 , α 22 = 1.5 × 10 -6 and α 33 = 9.1 × 10 -6 /K in the temperature range of 298-573 K along the three respective crystallographic axes. The specific heat is almost linear and increases from 0.442 to 0.498 Jg -1 K -1 in the measured temperature range. The thermal diffusivity is anisotropic and decreases with increasing temperature from 295 to 548 K. At room temperature the calculated thermal conductivities κ 11 and κ 33 are 7.96 and 9.77 Wm -1 K -1 , respectively. These thermal parameters of Nd:LuVO 4 crystal have indicated that it is an excellent candidate laser material.