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  • 02월 19일 10시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제121회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Frequency comb referenced phase spectroscopy measures plasmonic dynamics with picometre precision

등록일
2018년 2월 7일 16시 50분 30초
접수번호
5670
발표코드
ANAL1-3 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 16시 : 20분
발표형식
심포지엄
발표분야
Analytical Chemistry - Recent Advances in Analytical Chemistry I: Optical Sensor Platform Based Nanobio Materials
저자 및
공동저자
Seungchul Kim
Department of optics and mechatronics engineering, Pusan National University, Korea
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.

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