Enhanced Chiral Sensing with Dielectric Nanoresonators
METADATA ONLY
Loading...
Author / Producer
Date
2020-01-08
Publication Type
Journal Article
ETH Bibliography
no
Citations
Altmetric
METADATA ONLY
Data
Rights / License
Abstract
Chiro-sensitive molecular detection is highly relevant as many biochemical compounds, the building blocks of life, are chiral. Optical chirality is conventionally detected through circular dichroism (CD) in the UV range, where molecules naturally absorb. Recently, plasmonics has been proposed as a way to boost the otherwise very weak CD signal and translate it to the visible/NIR range, where technology is friendlier. Here, we explore how dielectric nanoresonators can contribute to efficiently differentiate molecular enantiomers. We study the influence of the detuning between electric (ED) and magnetic dipole (MD) resonances in silicon nanocylinders on the quality of the CD signal. While our experimental data, supported by numerical simulations, demonstrate that dielectric nanoresonators can perform even better than their plasmonic counterpart, exhibiting larger CD enhancements, we do not observe any significant influence of the optical chirality. © 2019 American Chemical Society.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
20 (1)
Pages / Article No.
585 - 591
Publisher
American Chemical Society
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Bionanophotonics; Chirality; Biosensing; Dielectric nanoresonators; Circular dichroism; Nano-optics
Organisational unit
09698 - Quidant, Romain / Quidant, Romain