Topological Phenomena in Artificial Materials Xiujuan Zhang, Associate Professor, School of Engineering and Applied Sciences, Department of Material Science and Engineering, Nanjing University May 12, 10:00 - 11:00 B1 L3 R3119 topological phenomena artificial materials This talk will cover the design and realization of novel topological states and effects in acoustic artificial materials, focusing on higher-order topological states, non-Hermitian physics, and acoustic spin- and orbital angular momentum-related topological phenomena.
Xiujuan Zhang, Associate Professor, School of Engineering and Applied Sciences, Department of Material Science and Engineering, Nanjing University
Structuring Sound and Vibration by Metasurfaces Badreddine Assouar, Professor, Director of Research at French National Center of Scientific Research (CNRS), University of Lorraine, France May 11, 12:00 - 13:00 B9 L2 R2325 This seminar provides an overview of recent research on acoustic and elastic metasurfaces and metamaterials, covering their fundamentals, applications in wave and vibration control, including low-frequency absorption, BIC physics, and phonic skyrmions.
Homogenization and Wave Functional Materials Ying Wu, Professor, Applied Mathematics and Computational Sciences Apr 17, 12:00 - 13:00 B9 L2 R2325 Wave functional materials Homogenization In this talk, I will give a brief review on the progress from on homogenization and its impact on achieving unusual wave functional materials, such as zero-index materials in which the effective refractive index is vanishing.
Waves Functional Materials - 2019-09-15 Ying Wu, Professor, Applied Mathematics and Computational Sciences Sep 15, 12:00 - 13:00 B9 L2 H1 R2322 Wave functional materials wave propagation control metamaterials Metasurfaces effective medium redirection emission rate Wave functional materials are artificial materials that can control wave propagation as wished. In this talk, I will give a brief review of the progress of wave functional materials and reveal the secret behind the engineering of these materials to achieve desired properties.
Waves in Complex Media: Theories and Applications Ying Wu, Professor, Applied Mathematics and Computational Sciences Sep 12, 12:00 - 13:00 B9 L2 H1 We focus on the theoretical modeling and numerical simulation of classical wave propagation in complex systems, such as periodic structures and random media. In this talk, I will give an overview of the research conducted in our group by emphasizing on three major aspects: numerical method, homogenization, and applications in artificial materials.
