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 publication2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-2
Number of pages2
Volume2017-January
ISBN (Electronic)9781509062904
DOIs
Publication statusPublished - 2017 Nov 22
Event2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 - Singapore, Singapore
Duration: 2017 Jul 312017 Aug 4

Other

Other2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
CountrySingapore
CitySingapore
Period17/7/3117/8/4

Fingerprint

Circular dichroism spectroscopy
Dichroism
dichroism
Nanostructures
Molecules
spectroscopy
Density (optical)
Light polarization
Electromagnetic fields
Poynting theorem
molecules
optical density
polarized light
electromagnetic fields

Keywords

  • Biosensing
  • Chirality
  • Circular dichroism
  • Component

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Lee, S., Yoo, S. J., & Park, Q. H. (2017). Analysis on the surface-enhanced circular dichroism spectroscopy. In 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 (Vol. 2017-January, pp. 1-2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CLEOPR.2017.8118708

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

2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Vol. 2017-January Institute of Electrical and Electronics Engineers Inc., 2017. p. 1-2.

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 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. vol. 2017-January, Institute of Electrical and Electronics Engineers Inc., pp. 1-2, 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017, Singapore, Singapore, 17/7/31. https://doi.org/10.1109/CLEOPR.2017.8118708
Lee S, Yoo SJ, Park QH. Analysis on the surface-enhanced circular dichroism spectroscopy. In 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Vol. 2017-January. Institute of Electrical and Electronics Engineers Inc. 2017. p. 1-2 https://doi.org/10.1109/CLEOPR.2017.8118708
Lee, Seojoo ; Yoo, Seok Jae ; Park, Q Han. / Analysis on the surface-enhanced circular dichroism spectroscopy. 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Vol. 2017-January Institute of Electrical and Electronics Engineers Inc., 2017. pp. 1-2
@inproceedings{443958837d6049e3ba295a37af9bd060,
title = "Analysis on the surface-enhanced circular dichroism spectroscopy",
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.",
keywords = "Biosensing, Chirality, Circular dichroism, Component",
author = "Seojoo Lee and Yoo, {Seok Jae} and Park, {Q Han}",
year = "2017",
month = "11",
day = "22",
doi = "10.1109/CLEOPR.2017.8118708",
language = "English",
volume = "2017-January",
pages = "1--2",
booktitle = "2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017",
publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - GEN

T1 - Analysis on the surface-enhanced circular dichroism spectroscopy

AU - Lee, Seojoo

AU - Yoo, Seok Jae

AU - Park, Q Han

PY - 2017/11/22

Y1 - 2017/11/22

N2 - 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.

AB - 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.

KW - Biosensing

KW - Chirality

KW - Circular dichroism

KW - Component

UR - http://www.scopus.com/inward/record.url?scp=85044307372&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85044307372&partnerID=8YFLogxK

U2 - 10.1109/CLEOPR.2017.8118708

DO - 10.1109/CLEOPR.2017.8118708

M3 - Conference contribution

VL - 2017-January

SP - 1

EP - 2

BT - 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017

PB - Institute of Electrical and Electronics Engineers Inc.

ER -