Localized and extended collective optical phonon modes in regular and random arrays of contacting nanoparticles: escape from phonon confinement

S. V. Koniakhin, O. I. Utesov, A. G. Yashenkin

In the present paper, we utilize the coupled-oscillator model describing the hybridization of optical phonons in touching and/or overlapping particles in order to study the Raman s…