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How to Make Small Things Do Big Things: Exploring Engineered Disorder for Massively Scalable Metasurfaces and Metamaterials


Wray, Parker Ryan (2024) How to Make Small Things Do Big Things: Exploring Engineered Disorder for Massively Scalable Metasurfaces and Metamaterials. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/kvz3-jn93.


This work presents a collection of topics related to anomalous electromagnetic scattering, emission, and absorption states formed from random systems. The underlying motivation is to explore to what extent metasurface and metamaterial concepts could be applied at a massively large scale; by identifying emergent properties in systems that do not require careful fabrication. Emphasis is placed on exploring theoretical descriptions for systems that do not conform well to existing simpler models. Covered topics include random metasurfaces for spectral filtering and polarization invariance, random nanoparticle films for radiative cooling, broadband polarization and angle invariant absorption using random fractals, effective medium models beyond traditional assumptions, a mathematical transform to understand highly directional scattering/emission in complex systems, and optical metrology and characterization techniques for random systems.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Random Metasurface, metasurface, metamaterial, Kerker scattering, Kerker transform, Mie scattering, Mie theory, Scattering theory, Radiative cooling, Random fractals, Optical filters, Multiple scattering, Optical Metrology, Particle characterization
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Electrical Engineering
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Atwater, Harry Albert
Thesis Committee:
  • Yang, Changhuei (chair)
  • Faraon, Andrei
  • Marandi, Alireza
  • Atwater, Harry Albert
Defense Date:13 October 2023
Funding AgencyGrant Number
Army Research Office (ARO)W911NF-18-1-0240
Record Number:CaltechTHESIS:01032024-012340742
Persistent URL:
Related URLs:
URLURL TypeDescription adapted for chapter 2 adapted for chapter 3 adapted for chapter 6 adapted for chapter 7 adapted for chapter 9 adapted for chapter 10
Wray, Parker Ryan0000-0003-3384-0826
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:16273
Deposited By: Parker Wray
Deposited On:04 Jan 2024 18:18
Last Modified:21 Mar 2024 21:22

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