Co-existence of Extended and Localized States in Thue-Morse Array of Optical Cavities
Department
Physics
Major
Physics
Research Advisor
Yamilov, Alexey
Advisor's Department
Physics
Funding Source
National Science Foundation (NSF)
Abstract
Thue-Morse sequence is a prime example of deterministic aperiodic systems with singular-continuous structure spectra. We report on a study of optical properties of a two-dimensional Thue-Morse-based array of micro-cavities. Under realistic conditions, tight-binding description is employed to investigate optical spectra of the system and spatial extent of its eigenstates. We observe coexistence of localized and delocalized states in narrow spectral regions and provide an explanation for this phenomenon.
Biography
Timofey is a junior at Missouri S& T and majoring in physics. He has been a member of the METIS research group advised by Dr. Alexey Yamilov since summer of 2012. His role in the research has been concentrated in studying the optical properties of the systems described above using the commercial package COMSOL Multiphysics. After receiving his bachelor's degree, Timofey plans to attend graduate school and pursue a career in research physics. 43
Research Category
Sciences
Presentation Type
Oral Presentation
Document Type
Presentation
Location
Upper Atrium/Hallway
Presentation Date
03 Apr 2013, 9:00 am - 11:45 am
Co-existence of Extended and Localized States in Thue-Morse Array of Optical Cavities
Upper Atrium/Hallway
Thue-Morse sequence is a prime example of deterministic aperiodic systems with singular-continuous structure spectra. We report on a study of optical properties of a two-dimensional Thue-Morse-based array of micro-cavities. Under realistic conditions, tight-binding description is employed to investigate optical spectra of the system and spatial extent of its eigenstates. We observe coexistence of localized and delocalized states in narrow spectral regions and provide an explanation for this phenomenon.
Comments
Joint project with Brock Hinton