Synthesis and Plasmonics of Surface-Truncated Noble Metal Nanostructures for Advanced Nanoantenna Engineering

Doctoral Dissertation

Abstract

The increasing interest in on-chip plasmonic devices underscores the importance of having a fundamental understanding of the interactions occurring when noble metal nanostructures are brought into contact with substrate materials. The resulting adjustments to the plasmon resonances and electric near-fields are both significant and unavoidable. In the solid-state dewetting of ultrathin metal films specifically, an important nanosynthesis technique for many modern technologies, the resulting spherical nanostructures exhibit a thermodynamically determined truncation by the substrate. The effects of introducing asymmetry in both the surface structure and the dielectric environment are critical for determining optoelectronic properties and are hence impactful parameters to understand and manipulate in the rational design of on-chip plasmonic devices. Herein, is demonstrated a comprehensive study of the effects of surface truncation on the plasmon resonance and near-fields of substrate-truncated nanostructures, beginning with Ag nanospheres, and expanding to include Au nanostars and hexagonal Au nanoplates.

Attributes

Attribute NameValues
Author Trevor B. Demille
Contributor Svetlana Neretina, Research Director
Contributor David Go, Committee Member
Contributor Gregory Hartland, Committee Member
Contributor Ed Kinzel, Committee Member
Degree Level Doctoral Dissertation
Degree Discipline Aerospace and Mechanical Engineering: Materials Science and Engineering
Degree Name Doctor of Philosophy
Banner Code
  • PHD-AMSE

Defense Date
  • 2021-03-16

Submission Date 2021-04-20
Record Visibility Public
Content License
  • All rights reserved

Departments and Units
Catalog Record

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