Chiral Discrimination in Helicity-Preserving Fabry-Pérot Cavities

Abstract

We theoretically study circular dichroism of chiral molecules embedded inside a helicity-preserving Fabry-Pérot cavity. We find an increase of the intrinsic chiroptical response of the molecules by 2 orders of magnitude and report the first clear signature of chiral cavity polaritons upon entering the regime of strong light-matter coupling. We study a cavity design based on two dielectric photonic crystal mirrors acting, in a narrow frequency range, as efficient polarization cross-converters in transmission for one polarization and almost perfect reflectors for the other polarization. We show that a Pasteur medium hosted inside such a cavity can couple efficiently to both the outside of the cavity and to the helicity-preserving mode, inheriting an enhanced chiral character. We expect such a device to be useful in the future to design ultrasensitive chiral sensors for optics and stereochemistry.

References in corpus (3)

• Metasurfaces with maximum chirality empowered by bound states in the continuum
• Spin-Preserving Chiral Photonic Crystal Mirror
• On enhanced sensing of chiral molecules in optical cavities

Cited by in corpus (8)

• Strong coupling in chiral cavities: nonperturbative framework for enantiomer discrimination
• Chiral Polaritonics: Analytic Solutions, Intuition and its Use
• Engineering flat bands in twisted-bilayer graphene away from the magic angle with chiral optical cavities
• Metasurface-based hybrid optical cavities for chiral sensing
• Chiral photonic super-crystals based on helical van der Waals homostructures
• Classical Approaches to Chiral Polaritonics
• Angular Momentum-Dependent Spectral Shift in Chiral Vacuum Cavities
• The relevance of degenerate states in chiral polaritonics