Chiral Surface Waves for Enhanced Circular Dichroism

Abstract

We present a novel chiral sensing platform that combines a one-dimensional photonic crystal design with a birefringent surface defect. The platform sustains simultaneous transverse electric and transverse magnetic surface modes, which are exploited to generate chiral surface waves. The present design provides homogeneous and superchiral fields of both handednesses over arbitrarily large areas in a wide spectral range, resulting in the enhancement of the circular dichroism signal by two orders of magnitude, thus paving the road toward the successful combination of surface-enhanced spectroscopies and electromagnetic superchirality.

Added references. Corrected typos. Included new design for broadband chiral surface waves

References in corpus (1)

• Universal Quasi-Static Limit for Plasmon-Enhanced Optical Chirality

Cited by in corpus (12)

• Optical Chirality in Dispersive and Lossy Media
• Circular Dichroism Enhancement in Plasmonic Nanorod Metamaterials
• Absolute chiral sensing in dielectric metasurfaces with signal reversals
• Chiral sensing with achiral isotropic metasurfaces
• Helicity Density Maximization in a Planar Array of Achiral High-Density Dielectric Nanoparticles
• Chiral sensing with achiral anisotropic metasurfaces
• Generation of Optical Chirality Patterns with Plane Waves, Evanescent Waves and Surface Plasmon Waves
• On electromagnetic surface waves supported by an isotropic chiral material
• Electromagnetic surface waves guided by the planar interface of isotropic chiral materials
• Superchiral photons unveil magnetic circular dichroism
• Signal and Noise Analysis for Chiral Structured Illumination Microscopy
• Towards Chiral Sensing and Spectroscopy Enabled by All-Dielectric Integrated Photonic Waveguides