230 citations · 365 across the 15 of their papers we have counts for
15 papers
Waves 2026 Book of Abstracts
Lise-Marie Imbert-Gerard, Chrysoula Tsogka, Daniel Appelo +4
WAVES 2026, 17th International Conference on Mathematical and Numerical Aspects of Wave Propagation Concordia University (John Molson Building), Montreal, Canada, June 22-26, 2026…
Periodic and quasiperiodic traveling waves in nonlinear lattices with odd elasticity
Andrus Giraldo, Stefan Ruschel, Behrooz Yousefzadeh
Discrete nonlinear systems support a rich variety of localized and extended wave phenomena, with their dynamics sensitively dependent on the symmetries of the underlying interactio…
Parametric Instability in Discrete Models of Spatiotemporally Modulated Materials
Jiuda Wu, Behrooz Yousefzadeh
We investigate the phenomenon of parametric instability in discrete models of spatiotemporally modulated materials. These materials are celebrated in part because they exhibit nonr…
Phase-preserving nonreciprocal dynamics in coupled nonlinear oscillators
Ali Kogani, Behrooz Yousefzadeh
Nonreciprocity is most commonly associated with a large difference in the transmitted energy when the locations of the source and receiver are interchanged. This energy bias is acc…
Unilateral vibration transmission in mechanical systems with bilinear coupling
Ali Kogani, Behrooz Yousefzadeh
Unilateral transmission refers to the scenario in which the waves transmitted through a system remain in pure tension or pure compression. This transmission phenomenon may occur in…
Nonreciprocal Phase Shifts in Spatiotemporally Modulated Systems
Jiuda Wu, Behrooz Yousefzadeh
Materials and devices subject to spatiotemporal modulation of their effective properties have a demonstrated ability to support nonreciprocal transmission of waves. Most notably, s…
Pattern formation in coiling of falling viscous threads: Revisiting the geometric model
Will Sze, Eusebius J. Doedel, Ida Karimfazli +1
The "Fluid Mechanic Sewing Machine" creates periodic patterns through the coiling nature of a viscous fluid falling onto a moving surface. At relatively moderate heights, the repor…
Linear Nonreciprocal Dynamics of Coupled Modulated Systems
Jiuda Wu, Behrooz Yousefzadeh
Waveguides subject to spatiotemporal modulations are known to exhibit nonreciprocal vibration transmission, whereby interchanging the locations of the source and receiver change th…
Nonreciprocal phase shifts in a nonlinear periodic waveguide
Ali Kogani, Behrooz Yousefzadeh
We explore nonreciprocal vibration transmission in a nonlinear periodic waveguide. Nonlinearity and asymmetry, the two necessary requirements for nonreciprocity, are both introduce…
Restoring the reciprocity invariance in nonlinear systems with broken mirror symmetry
Andrus Giraldo, Behrooz Yousefzadeh
Circumventing the reciprocity invariance has posed an interesting challenge in the design of modern devices for wave engineering. In passive devices, operating the device in the no…
Rayleigh wave propagation in nonlinear metasurfaces
Antonio Palermo, Behrooz Yousefzadeh, Chiara Daraio +1
We investigate the propagation of Rayleigh waves in a half-space coupled to a nonlinear metasurface. The metasurface consists of an array of nonlinear oscillators attached to the f…
Surface wave non-reciprocity via time-modulated metamaterials
Antonio Palermo, Paolo Celli, Behrooz Yousefzadeh +2
We investigate how Rayleigh waves interact with modulated resonators located on the free surface of a semi-infinite elastic medium. We begin by studying the dynamics of a single re…
Observation of nonreciprocal wave propagation in a dynamic phononic lattice
Yifan Wang, Behrooz Yousefzadeh, Hui Chen +3
Acoustic waves in a linear time-invariant medium are generally reciprocal; however, reciprocity can break down in a time-variant system. In this Letter, we report on an experimenta…
Complete Delocalization in a Defective Periodic Structure
Behrooz Yousefzadeh, Chiara Daraio
We report on the existence of stable, completely delocalized response regimes in a nonlinear defective periodic structure. In this state of complete delocalization, despite the pre…
Supratransmission in a Disordered Nonlinear Periodic Structure
Behrooz Yousefzadeh, A. Srikantha Phani
We study the interaction among dispersion, nonlinearity, and disorder effects in the context of wave transmission through a discrete periodic structure, subjected to continuous har…