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Updated: May 21, 2025

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
Published on: May 27, 2020
Born-Kuhn coupled oscillator model for optical activity in ordered media
Razvigor Ossikovski1, Oriol Arteaga2
1LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France. razvigor.ossikovski@polytechnique.edu.
Abstract:
Considering the phenomenological electromagnetic description of optical activity, we establish a unified formal framework, wherein the gyration and permittivity tensors of any ordered medium (a molecule or a crystal) can be derived using the classic Born-Kuhn coupled oscillator model. This model allows for efficient parameterisation of both tensors in terms of configurational and structural parameters (orientations, positions and coupling strengths) of a system of coupled oscillators having the same symmetries as the medium of interest. Thus, Born-Kuhn molecular models of all optically active crystal classes are established.
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