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|
| Type |
Symposium |
| Area |
Recent Advances in Analytical Chemistry I: Optical Sensor Platform Based Nanobio Materials |
| Room No. |
Room 201A |
| Time |
THU 16:20-: |
| Code |
ANAL1-3 |
| Subject |
Frequency comb referenced phase spectroscopy measures
plasmonic dynamics with picometre precision
|
| Authors |
Seungchul Kim
Department of optics and mechatronics engineering, Pusan National University, Korea |
| Abstract |
Plasmonics can elaborate the interactions between photons and target chemical, biological, or atomic species. Plasmonic metrology is primarily based on the spectral shift of the scattering intensity spectrum; however, the use of colorimetric intensity measurements ultimately limits the resolution, detection speed, and linearity of plasmonic sensors. In this paper, we demonstrate the first use of a frequency comb to provide high speed, high precision, and high linearity to plasmonic rulers, with direct traceability to a time standard. The sub-nanometre 1.94 Å dynamic motion of nano-holes was measured with an unprecedented 1.67 pm resolution, which implies the realization of a fast and robust picometre-precision plasmonic ruler. Plasmonic field propagation here enhanced interactions by a factor of 155 compared to the physical sample length, which will provide an utmost precision to plasmonic phase spectroscopy for in-depth understanding of the dynamic motions of physical, chemical, and biological samples in nanoscopic volumes. |
| E-mail |
s.kim@pusan.ac.kr |
|
121st General Meeting of the KCS