Development of local excitation system using axicon lens

• Project/Area Number: 26610127
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Biological physics/Chemical physics/Soft matter physics
• Research Institution: Osaka University (2015-2016); Tohoku University (2014)
• Principal Investigator: ISHIJIMA Akihiko 大阪大学, 生命機能研究科, 教授 (80301216)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: バクテリア / 蛍光 / 励起

Outline of Final Research Achievements

The most important point of an optical system using axicon lens is alignment of axis of light. An accuracy of axicon apex is important point. To avoid of it, the expanded laser beam was incident to the system. To expand the beam radius, we used both a commercially produced beam expander and two convex lenses. However, in both cases, the beam profiles were turbulence. Next point is the establishment of optical system having a fine beam profile.