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Brillouin-Mandelstam Light Scattering Spectroscopy of the Nanoscale Phononic Superlattice Arrays

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We used the Brillouin-Mandelstam light scattering spectroscopy to demonstrate strong modification of the phonon dispersion in two-dimensional alumina superlattices with nanometer feature sizes. Non-linearity of phonon dispersion in the phononic superlattice arrays creates new possibilities for controlling the optical, thermal and electronic properties of such structures.

© 2015 Optical Society of America

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