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Angle-Resolved Mid-Infrared Spectroscopy of Gyroid Photonic Crystals


Khabiboulline, Emil Timergalievich (2016) Angle-Resolved Mid-Infrared Spectroscopy of Gyroid Photonic Crystals. Senior thesis (Major), California Institute of Technology. doi:10.7907/4GR6-3646.


Gyroid photonic crystals, which can form photonic topological insulators, offer a rich diversity of physics for fundamental study, in addition to yielding useful applications. Understanding their band structure is crucial towards advancing both fronts. An angle-resolved spectroscopy apparatus is constructed to experimentally measure band structures. Operating at wavelengths from 7.7 to 11.1 μm, it is employed to study single and double-gyroid photonic crystals, constructed of amorphous silicon in 5 μm unit cells. Transmittance and reflectance act as indicators of density of states, and are collected as spectra over angles of incidence ranging from 17 to 30 degrees. Comparison to theory confirms interesting features, such as bandgaps. Further simulation guides the design of a crystal amenable to the first experimental measurement of Weyl points at mid-infrared wavelengths.

Item Type:Thesis (Senior thesis (Major))
Subject Keywords:Physics
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Awards:Penelope W. and E. Row Stamps IV Leadership Scholar Awards Program, 2012-2016. San Pietro Travel Prize, 2014. The Lucy Guernsey Service Award, 2015. Frank Teruggi Memorial Award, 2015.
Thesis Availability:Withheld
Research Advisor(s):
  • Unknown, Unknown
Group:Kavli Nanoscience Institute
Thesis Committee:
  • None, None
Defense Date:18 May 2016
Record Number:CaltechTHESIS:01102018-102454651
Persistent URL:
Khabiboulline, Emil Timergalievich0000-0001-9151 -6464
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10630
Deposited By: Joy Painter
Deposited On:11 Jan 2018 00:15
Last Modified:04 Oct 2019 00:19

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