Research Interests: Nanoplasmonic theory and applications.
Microfluidic-based biochip developments.
Nanoscale molecular phenomena.
Job Interests: Academic and industry R&D
In Korea, I finished my undergraduate in Seoul National Univeristy in 2002. After it, I experienced development of information architecture and systemtical design of destroyer and submarine as a associate manager in Hyundai Heavy Industries.
Since studying in UC Berkeley after working in HHI, I, a Ph.D student, am focusing on nanoplasmonic-based spectroscopic sensor development, microfluidic-based biochip design and nanoscale molecular phenomena.
Eagle-Beak Nanoantenna as Dual Electric Field and Thermal Gradient Generator for Single Molecule SERS [BPN547]
A nanoantenna, upon absorbing incident light, emits focused electric and thermal fields. Our proposed 'eagle-beak' nanoantenna generates strongly amplified electric fields (hot-spots) at its tip and along its edges. Also it is designed to utilize the two field gradients for preconcentration of target molecules around the hot-spots. Previously we demonstrated non-blinking single-molecule SERS with conventional Raman molecules with excellent enhancement factor of 10^14. Here, we expand its applications to Raman polarization studies as well as biomolecular detection (i.e. amyloid beta protein). Based on the examples, well-designed eagle-beak nanoantenna can provide clues to understand physcis of surface-enhanced Raman scattering, and expand its applications to various molecular sensing mechanism.