Construction of New Crystal Growth Engineering Leaded by Laser-Induced Space Controlled Crystallization

2014 Fiscal Year Final Research Report

• Project/Area Number: 23246114
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Inorganic materials/Physical properties
• Research Institution: Nagaoka University of Technology
• Principal Investigator: KOMATSU Takayuki 長岡技術科学大学, 工学(系)研究科(研究院), 教授 (60143822)
• Co-Investigator(Kenkyū-buntansha): HONMA Tsuyoshi 長岡技術科学大学, 大学院工学研究科, 准教授 (70447647) ; SHINOZAKI Kenji 長岡技術科学大学, 大学院工学研究科, 助教 (10723489)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: レーザー誘起結晶化 / 単結晶ライン / 複屈折イメージング / 非線形光学結晶 / ホモエピタキシャル成長 / 結晶成長工学

Outline of Final Research Achievements

Highly oriented crystal lines with different morphologies were patterned in glasses by using the laser-induced crystallization method, and the crystal growth mechanism was studied. It was demonstrated that crystals are patterned in the inside (depth: ~100 m) of　glasses by moving gradually the laser focal position from the surface into the inside. In the bending crystal lines, it was clarified that the preferable crystal growth direction changes gradually at near the bending points along the laser scanning direction. The homo-epitaxial crystal growth was discovered to occur at the crossing points of two crystal lines. The laser-induced crystallization method creates extremely unique crystal growths being unable in the usual crystal growth techniques, and we propose a field of new crystal growth engineering.

Free Research Field

材料工学