The propagation of the fundamental symmetric Lamb mode S0 along wz-BN/AlN thin composite plates suitable for telecommunication and sensing applications is studied. The investigation of the acoustic field profile across the plate thickness revealed the presence of modes having longitudinal polarization, the Anisimkin Jr. plate modes (AMs), travelling at a phase velocity close to that of the wz-B...

We analyze the guiding problem in a realistic photonic crystal fiber, using a novel full-vector modal technique. This is a biorthogonal modal method based on the non-self-adjoint character of the electromagnetic propagation in a fiber. Dispersion curves of guided modes for different fiber structural paremeters are calculated, along with the two-dimensional transverse intensity distribution of t...

Modeling and experiments are used to investigate Lamb wave propagation in the direction perpendicular to an applied stress. Sensitivity, in terms of changes in velocity, for both symmetrical and anti-symmetrical modes was determined. Codes were developed based on analytical expressions for waves in loaded plates and they were used to give wave dispersion curves. The experimental system used a p...

We study transformation of surface modes in plasmonic waveguides when the loss strength is varying from zero to realistic values. For the examples of plasmonic modes guided by cylindrical nanorod and metal–dielectric–metal slot waveguides, we show that transformation of dispersion curves follows one of two fundamental scenarios: degeneracy removal of evanescent modes and mode reconnection. We d...

One of the goals Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) mission is to constrain interior structure Mars. We present a hierarchical transdimensional Bayesian approach extract phase velocity dispersion shear-wave (VS) models from single seismogram. This method was adapted Mars technique recently developed for Earth (Xu & Beghein, 2019, https://doi....

We present results from ambient noise tomography applied to temporary seismological stations in the easternmost part of the Alps and their transition to the adjacent tectonic provinces (Vienna Basin, Bohemian Massif, Southern Alps, Dinarides). By turning each station into a virtual source, we recover surface waves in the frequency range between 0.1 and 0.6 Hz, which are sensitive to depths of a...

Mode selection of guided waves in an elastic steel plate with thick coating layer has been studied here. E€ect of both thick elastic coating and damping of the coating layer on the dispersion and mode shapes has been investigated and modes that are less a€ected by elastic coating and damping have been identi®ed. For modeling the viscoelastic behavior of the coating layer, the standard linear so...