Application of new microscope unit with an ionic liquid and immersion objective to various optical spectroscopic techniques

2014 Fiscal Year Final Research Report

• Project/Area Number: 24510163
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials/Nanobioscience
• Research Institution: National Institute of Information and Communications Technology
• Principal Investigator: YAMADA Toshiki 独立行政法人情報通信研究機構, 未来ICT研究所ナノICT研究室, 主任研究員 (10359101)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 光学顕微鏡 / イオン性液体 / 単一分子分光 / 高真空 / 表面プラズモン / ラマン散乱

Outline of Final Research Achievements

A new microscope unit having an immersion objective with high numerical aperture and a non-volatile ionic liquid as a refractive index matching medium was applied to various optical spectroscopic techniques in high vacuum. We performed orientation imaging of single molecules by defocusing under conventional wide-field illumination and successfully obtained orientation images related to transition dipoles of single molecules in high vacuum and pure nitrogen gas. We also fabricated surface plasmon and Raman measurement systems with the new microscope unit. Furthermore we performed terahertz spectroscopy for ionic liquids in understanding their unique nature.

Free Research Field

有機材料光物性