Design Optimization and Simulation of Wave Propagation in Metamaterials
Final rept. 15 Jun 2011-14 Jun 2014
MASSACHUSETTS INST OF TECH CAMBRIDGE
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Metametarials are scientifically engineered materials that are designed to interact with and control mechanical and electromagnetic waves in ways that cannot be achieved with conventional materials. For instance, metamaterials can be designed to bend electromagnetic waves around an object so that the object appears invisible to surrounding observers, focus light to create a subwavelength image of a source, and mitigate blast waves to protect structures and humans from explosion. Among the many research fronts we have been working on under this grant, one highlight is the introduction of a fundamentally new modeling paradigm that incorporates fabrication issues in the optimal design of metamaterials. Another highlight of our work under this grant is our successful development of full 3D topology optimization in which every voxel of the unit cell is a degree of freedom of photonic-crystal structures in order to find optimal omnidirectional band gaps for various symmetry groups, including fcc including diamond, bcc, and simple-cubic lattices.
- Operations Research
- Fiber Optics and Integrated Optics