A 2D chiral microcavity based on apparent circular dichroism

NATURE COMMUNICATIONS(2024)

Cited 0|Views11
No score
Abstract
Engineering asymmetric transmission between left-handed and right-handed circularly polarized light in planar Fabry-Perot (FP) microcavities would enable a variety of chiral light-matter phenomena, with applications in spintronics, polaritonics, and chiral lasing. Such symmetry breaking, however, generally requires Faraday rotators or nanofabricated polarization-preserving mirrors. We present a simple solution requiring no nanofabrication to induce asymmetric transmission in FP microcavities, preserving low mode volumes by embedding organic thin films exhibiting apparent circular dichroism (ACD); an optical phenomenon based on 2D chirality. Importantly, ACD interactions are opposite for counter-propagating light. Consequently, we demonstrated asymmetric transmission of cavity modes over an order of magnitude larger than that of the isolated thin film. Through circular dichroism spectroscopy, Mueller matrix ellipsometry, and simulation using theoretical scattering matrix methods, we characterize the spatial, spectral, and angular chiroptical responses of this 2D chiral microcavity. Here the authors induce asymmetric transmission in planar Fabry-Perot microcavities by embedding organic thin films exhibiting apparent circular dichroism (ACD), an optical phenomenon based on 2D chirality.
More
Translated text
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined