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Polariton Local States in Periodic Bragg Multiple Quantum Well Structures
Lev I. Deych, A. Yamilov, A. A. Lisyansky
We analytically study optical properties of several types of defects in Bragg multiple quantum well structures. We show that a single defect leads to two local polariton modes in t…
Concept of local polaritons and optical properties of mixed polar crystals
Lev I. Deych, Alexey Yamilov, Alexander A. Lisyansky
The concept of local polaritons is used to describe optical properties of mixed crystals in the frequency region of their {\it restrahlen} band. It is shown that this concept allow…
Polariton Dispersion Law in Periodic Bragg and Near-Bragg Multiple Quantum Well Structures
Lev I. Deych, A. A. Lisyansky
The structure of polariton spectrum is analyzed for periodic multiple quantum well structures with periods at or close to Bragg resonance condition at the wavelength of the exciton…