Hybridization of acoustic Tamm states and defective modes of one-dimensional phonon crystal

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Abstract

The spectral properties of a one-dimensional phonon crystal bounded by a reflector in the form of an air layer are studied. The presence of a defect in a phonon crystal with a reflector at the edge leads to a connection between the defective mode and the acoustic Tamm state. This connection of modes of different nature manifests itself in the form of hybridization of modes, and the pushing apart of dips in the reflection spectrum is explained by avoided crossing of modes.

About the authors

A. S Zuev

Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences”; Siberian Federal University

Krasnoyarsk, Russia; Krasnoyarsk, Russia

S. Y Vetrov

Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences”; Siberian Federal University

Krasnoyarsk, Russia; Krasnoyarsk, Russia

D. P Fedchenko

Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences”; Siberian Federal University

Krasnoyarsk, Russia; Krasnoyarsk, Russia

I. V Timofeev

Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences”; Siberian Federal University

Email: Ivan-V-Timofeev@ya.ru
Krasnoyarsk, Russia; Krasnoyarsk, Russia

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