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Title page for ETD etd-06112015-172615

Type of Document Dissertation
Author Yang, Yuanmu
URN etd-06112015-172615
Title Resonant All-Dielectric Optical Metamaterials
Degree PhD
Department Interdisciplinary Materials Science
Advisory Committee
Advisor Name Title
Jason G. Valentine, Ph.D. Committee Chair
Sharon M. Weiss, Ph.D. Committee Co-Chair
Deyu Li, Ph.D. Committee Member
Richard F. Haglund Jr., Ph.D. Committee Member
Yaqiong Xu, Ph.D. Committee Member
  • nonlinear optics
  • dielectrics
  • metamaterial
  • zero index of refraction
  • material sciences
Date of Defense 2015-05-22
Availability unrestricted
Absorption loss continues to be one of the primary impediments to the application of metal-based metamaterials at optical frequencies. Dielectric metamaterials offer one potential solution to this issue by eliminating Ohmic loss, allowing highly transparent metamaterials while also preserving the freedom to freely engineer the optical properties. These metamaterials are formed from semiconductor-based unit cells that exhibit both electric and magnetic Mie resonances, allowing us to manipulate the optical properties of the composite.

In this thesis, I present my efforts to realize resonant purely dielectric metamaterials which exhibit low absorption loss at optical frequencies. Such developments will hopefully lead to novel compact optical devices with superior performance and ultimately practical applications. In particular, I will present how artificially-designed dielectric nano-structures can be applied for efficiently controlling light emission, propagation, bio-sensing, and enhancing nonlinear light-matter interaction with greatly improved performance over plasmonic devices.

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