Takakazu Seki

Assistant Professor, Graduate School of Science and Technology, Hirosaki University *Profile is at the time of the award.

2024Inamori Research GrantsScience & Engineering

Research topics
Three-dimensional interfacial molecular view revealed by super-resolution surface specific vibrational spectroscopy
Keyword
Summary
To overcome the limitations of traditionally used microscopic spectroscopy such as limited lateral and depth spatial resolution and molecular specificity, one needs to develop a novel interface-specific analytical tool. In this study, I shall implement sub-100 nm lateral spatial resolution into a surface-specific vibrational spectroscopy by employing a super-resolution imaging technique, aiming to develop a novel non-contact all-optical microscopy to spatially resolve interfacial molecules’ three-dimensional structure and local charge distribution.

Message

I shall develop a novel non-contact all-optical microscopy to spatially resolve interfacial molecules’ three-dimensional structure and local charge distribution. By establishing this technique, I aim to offer a new way to material and life (biomedical) scientists to investigate their targets with “real-space chemistry/biology”.

Outline of Research Achievments

To rationally design materials’ function, one needs to understand interfacial molecules’ and their functional groups’ orientation, and also localization of surface charges. To resolve such interfacial local molecular/charge enviornment, new microscopic techniques with super-resolution capabilities in a lateral direction are needed. To this end, in this work, I have developped a basis of the microscopic sum-frequency generaton spectroscopic system with a Yb-laser system with a high repetition rate.


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