For more information about this meeting, contact Kris Jenssen, Yuxi Zheng.
| Title: | Invisibility Cloaks for Asymmetric Objects |
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| Seminar: | CCMA Luncheon Seminar |
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| Speaker: | Gregor Kovacic, Rensselaer Polytechnic Institute |
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| Abstract: |
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| A composite metametrial with appropriately chosen electro-magnetic
material properties can be used to
create an "invisibility cloak" around an object. This is a layer of
metamaterial which takes a set of light rays of a specific color that
impinge on the object and guides them around this object to emerge at
appropriate points on the opposite side of the object as if the rays
were straight all along. Breakthrough works by physicists used ray
tracing to compute "invisibility cloaks" in the forms ofspherical and
cylindrical shells, and actually manufactured a cylindrical
"invisibility cloak" that operates in the microwave regime. We used
Hamiltonian ray tracing to compute rays
passing through "invisibility cloaks" of more general shapes, including
triaxial ellipsoids, cones, and objects composed of parts of cones,
cylinders, and spheres. This talk will present the results of our work. |
Room Reservation Information
| Room Number: | MB114 |
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| Date: | 09 / 25 / 2009 |
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| Time: | 12:00pm - 01:30pm |
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