Development of Growth Technology of N-Benzyl-2-Methyl-4-Nitroaniline (BNA) Single Crystal Fiber For Terahertz Generation Applications

2015 Fiscal Year Final Research Report

• Project/Area Number: 26620162
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Organic and hybrid materials
• Research Institution: Tohoku University
• Principal Investigator: Kamada Kei 東北大学, 未来科学技術共同研究センター, 准教授 (60639649)
• Co-Investigator(Kenkyū-buntansha): TAKIDA YUMA 理化学研究所, 光量子工学研究領域, 訪問研究員 (50714820)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 結晶成長 / テラヘルツ / 非線形光学単結晶

Outline of Final Research Achievements

BNA fiber single crystals were grown by the m-PD method. Crucible materials and shape were designed according to wetness between BNA and the crucible materials. Finally BNA fiber single crystal with about 1-2 mm diameter was successfully grown by using the polystyrene crucible. The grown BNA crystal showed single Orthorhombic phase. The grown BNA crystal showed 19.7 arcsec of line width of rocking curve. This value is superior to that of the reported BNA crystals grown by the solution growth (~30 arcsec) and Bridgeman method (~100 arcsec). THz-wave generation from 4 THz up to 14 THz from the ｍ-PD grown BNA fiber was demonstrated. Positivity of high crystallinity BNA single crystal growth by the ｍ-PD method was evidenced by this study.

Free Research Field

結晶工学