Impurity-induced polaritons in a one-dimensional chain
A. Yamilov, L.I. Deych, and A.A. Lisyansky
TL;DR
This paper provides an analytical and numerical study of impurity-induced polariton bands in a 1D chain, revealing their spectral properties and localization characteristics.
Contribution
It introduces a detailed analytical approach to impurity polaritons in a 1D chain, validated by numerical simulations, advancing understanding of impurity effects on polariton spectra.
Findings
Analytical expressions for impurity polariton density of states
Localization length of impurity polaritons calculated
Excellent agreement between analytical and numerical results
Abstract
A detailed analytical study of an impurity induced polariton band arising inside a spectral gap between lower and upper polariton branches is presented. Using the microcanonical method, we calculate the density of states and localization length of the impurity polaritons. Analytical results are compared with numerical simulations and excellent agreement is found.
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