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연구

Research & Laboratory

제목
세미나 [12/21] Plasmonic Nanogap Devices for Biosensing and Spectroscopy Applications
작성일
2018.12.17
작성자
전기전자공학부
게시글 내용

< BK21 플러스 BEST 정보기술 사업단 세미나 개최 안내 > 


개최일시 : 2018 년 12월 21일 (금) 11:00 ~ 13:00

개최장소 : 제3공학관 C716호

세미나 제목 : Plasmonic Nanogap Devices for Biosensing and Spectroscopy Applications

내용 :

Nanometer-scale gaps in metals are one of key building blocks for plasmonics and nano-optics. This talk will summarize our recent efforts to engineer ultranarrow gaps for molecular spectroscopy and optical trapping. We have developed an unconventional fabrication technique known as atomic layer lithography, enabling mass-production of vertically oriented nanogaps with critical dimensions defined by atomic layer deposition of ultrathin films. Using this method, we can create ultrahigh-aspect-ratio nanogaps for visible, infrared, and terahertz applications. With ‘super-coupling’ of mid-infrared light into nano-coax resonators, we perform high-contrast mid-infrared absorption spectroscopy of biomolecules. The capability of nanogap sensors can be enhanced by simultaneously using them to generate gradient forces for trapping molecules. With a resonant nano-coax, we push the limit of optical trapping to a single protein molecule.



강연자 성함&직함 / 소속 : Sang-Hyun Oh, Professor / Department of Electrical and Computer Engineering, University of Minnesota

초청자 : 전기전자공학과 교수 김동현