학술논문
18aB04 Growth of Lithium Tetraborate (Li_2B_4O_7: LBO) Crystals without the scatterers(NCCG-35) / 18aB04 散乱フリー四ほう酸リチウム単結晶(Li_2B_4O_7:LBO)の育成(機能性結晶(1),第35回結晶成長国内会議)
Document Type
Journal Article
Author
Source
日本結晶成長学会誌 / Journal of the Japanese Association for Crystal Growth. 2005, 32(3):220
Subject
Language
Japanese
ISSN
0385-6275
2187-8366
2187-8366
Abstract
Li_2B_4O_7(LBO) crystal is a piezo-electric crystal and it is used as a surface acoustic wave (SAW) devices. Even though the scatterers exist in the SAW grade crystals, large size scale crystals are grown by the vertical Bridgman method. The crystal of the high quality without the scatterers compared with the SAW crystal is necessary for the optical crystal. We found the growth method of controlling the scatterers, and then evaluated the crystal without the scatterers. It has been found that the crystal quality varied widely depending on the ambient during the growth process.