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Journal Articles Physical Review A Year : 2023

Chiral discrimination in helicity-preserving Fabry-Pérot cavities

L. Mauro
J. Fregoni
J. Feist
Rémi Avriller

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.
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Dates and versions

hal-04000433 , version 1 (22-02-2023)

Identifiers

Cite

L. Mauro, J. Fregoni, J. Feist, Rémi Avriller. Chiral discrimination in helicity-preserving Fabry-Pérot cavities. Physical Review A, 2023, 107 (2), pp.L021501. ⟨10.1103/PhysRevA.107.L021501⟩. ⟨hal-04000433⟩

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