NCTS (South)



PLACER49223, Second Physics Building , NCKU

FIELDQuantum Information Science

SPEAKER Prof. Jer-Shing Huang(黃哲勳) - 清華大學化學系

TITLEPlasmonics for Nanoscale Light-matter Interaction

ABSTRACTWell-designed plasmonic nanostructures can concentrate and control optical fields at nanometer scale [1] and provide stiff optical potential to manipulate nanoobjects [2]. Recently, it has been shown that optical near fields can be designed to selectively enhance the typically weak circular dichroism (CD) of chiral molecules [3]. In this talk, I will present recent progress in my research group, including (1) Surface plasmon-enhanced circular dichroism; (2) Optical manipulation of particles using well-designed plasmonic optical near fields; and (3) Plasmonic Doppler grating for sensing. Other latest research progress on several different related topics, including mode conversion in optical nanocircuits [4] and plasmonic solar cells [5] will also be given if time is sufficient.

1. Biagioni, P.; Huang, J.-S.; Hecht, B. “Nanoantennas for visible and infrared radiation,” Rep. Prog. Phys. 2012, 75, 024402.
2. Tsai, W.-Y.; Huang, J.-S.; Huang, C.-B. “Selective Trapping or Rotation of Isotropic Dielectric Micro-Particles by Optical Near Field in a Plasmonic Archimedes Spiral,” Nano Letters 2014, 14, 547–552.
3. Lin, D.; Huang, J.-S. “Slant-gap plasmonic nanoantennas for optical chirality engineering and circular dichroism enhancement,” Opt. Exp., 2014, 22, 7434–7445.
4. Dai, W.-H.; Lin, F.-C.; Huang, C.-B.; Huang, J.-S. “Mode conversion in high-definition plasmonic optical nanocircuits,” Nano Letters 2014, 14, 3881–3886.
5. Liu, W.-L.; Lin, F.-C.; Yang, Y.-C.; Gwo, Shangjr; Huang, M. H.; Huang, J.-S. “The influence of shell thickness of Au@TiO2 core-shell nanoparticles on plasmonic enhancement effect in dye-sensitized solar cells,” Nanoscale 2013, 5, 7953–7962.