33 citations · 61 across the 3 of their papers we have counts for
8 papers
Causality and Passivity: from Electromagnetism and Network Theory to Metamaterials
Ankit Srivastava
In this review, we take an extensive look at the role that the principles of causality and passivity have played in various areas of physics and engineering, including in the moder…
Scattering under Linear Non Self-Adjoint Operators: Case of in-Plane Elastic Waves
Amir Ashkan Mokhtari, Yan Lu, Qiyuan Zhou +2
In this paper, we consider the problem of the scattering of in-plane waves at an interface between a homogeneous medium and a metamaterial. The relevant eigenmodes in the two regio…
On the Properties of Phononic Eigenvalue Problems
Amir Ashkan Mokhtari, Yan Lu, Ankit Srivastava
In this paper, we consider the operator properties of various phononic eigenvalue problems. We aim to answer some fundamental questions about the eigenvalues and eigenvectors of ph…
On the Emergence of Negative Effective Density and Modulus in 2-phase Phononic Crystals
Amir Ashkan Mokhtari, Yan Lu, Ankit Srivastava
In this paper we report metamaterial properties including negative and singular effective properties for what would traditionally be considered non locally resonant 2-phase phononi…
Level Repulsion and Band Sorting in Phononic Crystals
Yan Lu, Ankit Srivastava
In this paper we consider the problem of avoided crossings (level repulsion) in phononic crystals and suggest a computationally efficient strategy to distinguish them from normal c…
Negative Refraction, Beam Steering, Mode Switching, and High-pass Filtering in a 1-D Periodic Laminate
Ankit Srivastava
In this paper we show that a 1-D phononic crystal (laminate) can exhibit metamaterial wave phenomenon which is traditionally associated with 2-, and 3-D crystals. Moreover, due to…