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Title: Veselago lensing in a kagome lattice of microwave resonators
Authors: Ong, Momo
Advisors: Houck, Andrew
Contributors: Huse, David
Department: Physics
Class Year: 2013
Abstract: We attempt to observe Veselago lensing using an array of artificial resonators arranged in a kagome lattice configuration. We first establish the theory behind Klein tunnelling and Veselago lensing in the kagome lattice. Then, we perform simulations to model the bandstructure of the dual-frequency kagome lattice that is required for Veselago scattering. Next, we simulate the time evolution of various wavepackets in this dual-frequency lattice. We design and fabricate two different lattices. One is a dual-frequency kagome lattice with resonators differing in frequency by 1% on each side of the interface. The second device is a reference lattice with no frequency jump at the interface. We perform transmission and Gaussian pulse measurements on this lattice. Our preliminary results allow us to identify the bandwidths of the various bands in the kagome lattice. We also indirectly determine the frequency of our bare resonators (8.354GHz) by comparing our transmission measurements to simulations.
Extent: 102 pages
Access Restrictions: Walk-in Access. This thesis can only be viewed on computer terminals at the Mudd Manuscript Library.
Type of Material: Princeton University Senior Theses
Language: en_US
Appears in Collections:Physics, 1936-2017

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