Optical chirality and its interaction with matter.

By Yiqiao Tang, A. Cohen. Physical Review Letters, 2010

915 citations recorded by the source corpus.

We introduce a measure of the local density of chirality of the electromagnetic field. This optical chirality determines the asymmetry in the rates of excitation between a small chiral molecule and its mirror image, and applies to molecules in electromagnetic fields with arbitrary spatial dependence. A continuity equation for optical chirality in the presence of material currents describes the flow of chirality, in a manner analogous to the Poynting theorem for electromagnetic energy. "Superchiral" solutions to Maxwell's equations show larger chiral asymmetry, in some regions of space, than is found in circularly polarized plane waves.

Subfields: Atomic and Molecular Physics, and Optics, Cellular and Molecular Neuroscience, Spectroscopy

View Paper: https://www.semanticscholar.org/paper/c4cdefaeb30fb09ffb21236f9dbfbea134cf3409

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In Atomic and Molecular Physics, and Optics

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Citations in the corpus

Deep learning meets nanophotonics: A generalized accurate predictor for near fields and far fields of arbitrary 3D nanostructures. (2019, methodology): “64,65 We plot C normalized to the chirality of a left circular polarized plane wave C LCP .”
Locally and globally chiral fields for ultimate control of chiral light matter interaction (2018, background): “(25) First, note that h((5)) is symmetric with respect to exchange of ω3 and ω4, and symmetric/antisymmetric with respect to even/odd permutations of ω0, ω1, and ω2.”
Discriminatory optical force for chiral molecules (2014, background): “In this context, it appears, in fact, that we could equally well have identified any one of an infinite number of lower- and higher-order extensions of h [71, 73, 82], amongst them, the 00-zilch density Z 000 [83, 84], which was re-introduced into the literature recently in connection with fluoresce”
Theory and applications of free-electron vortex states (2017, background): “Circular dichroism enables optical probing of chiral objects using only polarization (spin or helicity) degrees of freedom of light [281, 282, 283, 284].”
Transverse and longitudinal angular momenta of light (2015, background): “The chirality of the particle or a molecule mixes the electric and magnetic interactions, so that the chiral contributions to the induced electric and magnetic dipole moments can be written as [85,86,89,103]”
Optical helicity, optical spin and related quantities in electromagnetic theory (2012, methodology): “for a chiral absorbing molecule irradiated by a monochromatic field of angular frequency ω is (equation 6 of [30]):”
Internal flows and energy circulation in light beams (2010, neutral): “It is worth noticing that the energy density and energy flow have useful counterparts – the chirality density (spin energy) and chirality flow (SAM density) [170–173].”
Ultrasensitive detection and characterization of biomolecules using superchiral fields. (2010, background): “2b–d, equation (3) is applied to evaluate the optical chirality of the near fields generated by the present structures: the superchiral field is spatially variable, and is one to two orders of magnitude larger than expected for circularly polarized plane waves.”