| 소형 고체 레이저용 $NdAl_3(BO_3)_4$ 단결정 육성 |
| 정선태, 강진기, 김정환, 정수진 |
| 서울대학교 무기재료공학과 |
| Growth of $NdAl_3(BO_3)_4$ Single Crystal for Miniature Solid State Laser |
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| ABSTRACT |
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NdAl3(BO3)4 have been developed for miniature solid state laser material. Single crystals of NdAl3(BO3)4 were grown by TSSG technique using BaB4O7 flux. The effects of growth conditions such as cooling rate, seed orientation and rotation speed on crystal quality and the morphology were studied. At the cooling rate of 2.4$^{circ}C$/day and the crystal rotation speed of 30~40rpm with the seed orientation in <201> or <100> directions, transparent and light violet colored crystals in size of 10$times$15$times$20㎣ with well developed {010}, {111}, {111}, {021}, {001}, {102}, {112}, {021} faces were obtained. By X-ray diffraction analysis, the space group was determined as C2/c, and the X-ray powder data was obtained. |
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