Molecular chirality detection using plasmonic and dielectric nanoparticlesopen access
- Authors
- Kim, TaeHyung; Park, Q-Han
- Issue Date
- 5월-2022
- Publisher
- WALTER DE GRUYTER GMBH
- Keywords
- chiral molecules; chiral sensing; chiroptical spectroscopy; circular dichroism (CD); dielectric nanoparticles; plasmonic nanoparticles
- Citation
- NANOPHOTONICS, v.11, no.9, pp.1897 - 1904
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOPHOTONICS
- Volume
- 11
- Number
- 9
- Start Page
- 1897
- End Page
- 1904
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/143241
- DOI
- 10.1515/nanoph-2021-0649
- ISSN
- 2192-8606
- Abstract
- Nanoscale particles and structures hold promise in circular dichroism (CD) spectroscopy for overcoming the weakness of molecular CD signals. Significant effort have been made to characterize nanophotonic CD enhancement and find efficient ways to boost molecular chirality, but the best solution is yet to be found. In this paper, we present a rigorous analytic study of the nanophotonic CD enhancement of typical nanoparticles. We consider metallic and dielectric nanoparticles capped with chiral molecules and analyze the effect of multipolar nanoparticles on the molecular CD. We identify the spectral features of the molecular CD resulting from the electric and magnetic resonances of nanoparticles and suggest better ways to boost molecular chirality. We also clarify the contribution of particle scattering and absorption to the molecular CD and the dependence on particle size. Our work provides an exact analytic approach to nanophotonic CD enhancement and offers a rule for selecting the most efficient particle for sensitive molecular chirality detection.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Science > Department of Physics > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.