In-situ SERS observation of selective molecule optical trapping

Nobuaki Oyamada; Hiro Minamimoto; Kei Murakoshi

doi:10.1117/12.2320041

24 April 2018 In-situ SERS observation of selective molecule optical trapping

Nobuaki Oyamada, Hiro Minamimoto, Kei Murakoshi

Proceedings Volume 10712, Optical Manipulation Conference; 1071221 (2018) https://doi.org/10.1117/12.2320041
Event: SPIE Structured Light, 2018, Yokohama, Japan

Abstract

It is predicted by various theoretical studies that nanometer size molecules could be trapped in the strong electromagnetic field due to its steep spatial gradient of the filed intensity. In this study, we have attempted to observe the plasmonic molecular trapping behavior in the mixed solution of 4,4’-bipyridine and 2,2’-bipyridine by surface enhanced Raman scattering measurements. In order to control the molecular optical trapping selectivity, we have introduced the electrochemical potential control into the system. The experimental results would indicate the achievement of the selective control of molecular optical trapping at room temperature in solution.

Citation Download Citation

Nobuaki Oyamada, Hiro Minamimoto, and Kei Murakoshi "In-situ SERS observation of selective molecule optical trapping", Proc. SPIE 10712, Optical Manipulation Conference, 1071221 (24 April 2018); https://doi.org/10.1117/12.2320041

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