Revealing Nanoscale Confinement Effects on Hyperbolic Phonon Polaritons with an Electron Beam

Accessing phonon polaritons in hyperbolic crystals by ARPES

Andrea Tomadin, Alessandro Principi, Justin C.W. Song, Leonid S. Levitov, ∗ and Marco Polini 5, † NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, I-56126 Pisa, Italy Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211, USA Walter Burke Institute for Theoretical Physics and Institute for Quantum Information and Matter, California Institute of Techno...

Acoustic phonon confinement in silicon nanolayers: Effect on electron mobility

We demonstrate the confinement of acoustic phonons in ultrathin silicon layers and study its effect on electron mobility. We develop a model for confined acoustic phonons in an ideal single-layer structure and in a more realistic three-layer structure. Phonon quantization is recovered, and the dispersion relations for distinct phonon modes are computed. This allows us to obtain the confined pho...

A NUMERICAL RENORMALIZATION GROUP APPROACH FOR AN ELECTRON-PHONON INTERACTION

A finite chain calculation in terms of Hubbard X-operators is explored by setting up a vibronic Harniltonian. The model conveniently transformed into a form so that in the case of strong coupling a numerical renormalization group approach is applicable. To test the technique, a one particle Green function is calculated for the model Harniltonian

Tuning Correlation Effects with Electron–Phonon Interactions

Terahertz instability of surface optical-phonon polaritons that interact with surface plasmon polaritons in the presence of electron drift

with surface plasmon polaritons in the presence of electron drift O. Sydoruk, E. Shamonina, V. Kalinin, and L. Solymar Department of Electrical and Electronic Engineering, Optical and Semiconductor Devices Group, Imperial College, Exhibition Road, London SW7 2BT, United Kingdom Erlangen Graduate School in Advanced Optical Technologies, University of Erlangen-Nuremberg, Paul-Gordan Str. 6, D-910...