Analysis on the surface-enhanced circular dichroism spectroscopy

Seojoo Lee, Seok Jae Yoo, Q Han Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Circular dichroism (CD), the difference in absorption of two opposite circularly polarized light by chiral molecules. Based on the generalized Poynting's theorem for chiral media, we reveal the origin of the CD in the chiral molecule/ nanostructure system. We find that CD enhancement arises through two distinct CD channels - inherent and induced. The inherent CD channel is direct molecular CD enhanced by strongly localized optical helicity density near the nanostructure. The induced CD channel, previously ignored, is asymmetric excitation and absorption of electromagnetic fields inside nanostructures surrounded by chiral molecules. We demonstrate that the induced CD channel can be significant in CD signals of entire system.

Original languageEnglish
Title of host publicationConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
PublisherOSA - The Optical Society
VolumePart F122-CLEOPR 2017
ISBN (Electronic)9781557528209
Publication statusPublished - 2017 Jan 1
EventConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017 - Singapore, Singapore
Duration: 2017 Jul 312017 Aug 4

Other

OtherConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
CountrySingapore
CitySingapore
Period17/7/3117/8/4

Fingerprint

Circular dichroism spectroscopy
Dichroism
Nanostructures
Molecules
Density (optical)
Light polarization
Electromagnetic fields

Keywords

  • Biosensing
  • Chirality
  • Circular dichroism
  • Component

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

Cite this

Lee, S., Yoo, S. J., & Park, Q. H. (2017). Analysis on the surface-enhanced circular dichroism spectroscopy. In Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017 (Vol. Part F122-CLEOPR 2017). [s1332] OSA - The Optical Society.

Analysis on the surface-enhanced circular dichroism spectroscopy. / Lee, Seojoo; Yoo, Seok Jae; Park, Q Han.

Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017. Vol. Part F122-CLEOPR 2017 OSA - The Optical Society, 2017. s1332.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lee, S, Yoo, SJ & Park, QH 2017, Analysis on the surface-enhanced circular dichroism spectroscopy. in Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017. vol. Part F122-CLEOPR 2017, s1332, OSA - The Optical Society, Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017, Singapore, Singapore, 17/7/31.
Lee S, Yoo SJ, Park QH. Analysis on the surface-enhanced circular dichroism spectroscopy. In Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017. Vol. Part F122-CLEOPR 2017. OSA - The Optical Society. 2017. s1332
Lee, Seojoo ; Yoo, Seok Jae ; Park, Q Han. / Analysis on the surface-enhanced circular dichroism spectroscopy. Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017. Vol. Part F122-CLEOPR 2017 OSA - The Optical Society, 2017.
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