Computation of electromagnetic properties of molecular ensembles

Abstract

We establish a link between quantum mechanical molecular simulations and the transfer matrix of a molecule. The transfer matrix (T-matrix) of an object provides a complete description of its electromagnetic response. Once the T-matrices of the individual components of an ensemble are known, the electromagnetic response of the ensemble can be efficiently computed. This holds for arbitrary arrangements of large number of molecules, as well as for periodic arrays. We provide T-matrix based formulas for computing traditional chiro-optical properties like Circular Dichroism and Oriented Circular Dichroism, and also for quantifying electromagnetic duality and electromagnetic chirality, two properties that are fundamentally related to chiral interactions, and also technologically relevant. The formulas are valid for light-matter interactions of arbitrary high multipolar orders. We exemplify our approach by first computing the T-matrix of a cross-like arrangement of four copies of a chiral molecule from the time-dependent Hartree-Fock theory simulation data of the individual molecule, and then computing the aforementioned electromagnetic properties of both the cross and the individual molecule. The link that we establish is a necessary step towards obtaining T-matrix based constitutive relations of general bulk molecular materials from quantum mechanical simulations of their molecular constituents.

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Cited by in corpus (10)

• Nonlinear circular dichroism in Mie-resonant nanoparticle dimers
• Efficient simulation of bi-periodic, layered structures based on the T-matrix method
• A T-matrix Based Approach to Homogenize Artificial Materials
• Exploring Functional Photonic Devices made from a Chiral Metal-Organic Framework Material by a Multiscale Computational Method
• Multiple scattering of light in nanoparticle assemblies: user guide for the TERMS program
• Separating the Material and Geometry Contribution to the Circular Dichroism of Chiral Objects Made from Chiral Media
• Towards maximally electromagnetically chiral scatterers at optical frequencies
• Excited State Properties from the Bethe--Salpeter Equation: State-to-State Transitions and Spin-Orbit Coupling
• Studying thermal radiation with T-matrices
• A Tensor Product Space for Studying the Interaction of Bipartite States of Light with Nanostructures