Low-Loss Near-Infrared Hyperbolic Metamaterials with Epitaxial ITO-In2O3 Multilayers

Peijun Guo, Benjamin T. Diroll, Wei Huang, Li Zeng, Binghao Wang, Michael J. Bedzyk, Antonio Facchetti, Tobin J Marks, Robert P. H. Chang, Richard D Schaller

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Artificial metamaterials with hyperbolic dispersions exhibit unusual optical properties not found in Nature. Such hyperbolic metamaterials (HMMs) permit the access to and control of electromagnetic waves with large wave vectors. An important criterion for multilayer-based HMMs is whether the thickness of each individual layer can be far below the operating wavelength while still maintaining the material and interfacial quality. Herein, we report heteroepitaxial growth of HMMs composed of multilayers of ultrathin indium tin oxide (ITO) and indium oxide (In2O3) films. The disparate metallic and dielectric properties of the individual building blocks, in conjunction with the good carrier mobility and film morphology enable a low-loss infrared HMM platform on which we demonstrate ultrafast optical switching and the enhancement of the radiative decay rate of PbS quantum dots in the telecommunication wavelength regime.

Original languageEnglish
Pages (from-to)2000-2007
Number of pages8
JournalACS Photonics
Volume5
Issue number5
DOIs
Publication statusPublished - May 16 2018

Fingerprint

Electromagnetic Radiation
Telecommunications
Quantum Dots
Metamaterials
Tin oxides
indium oxides
Indium
tin oxides
Multilayers
Infrared radiation
optical switching
Growth
carrier mobility
wavelengths
decay rates
oxide films
dielectric properties
telecommunication
electromagnetic radiation
platforms

Keywords

  • epitaxial growth
  • hyperbolic metamaterials
  • indium oxide (InO)
  • indium tin oxide (ITO)
  • lead sulfide (PbS) quantum dots
  • transient absorption

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biotechnology
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Low-Loss Near-Infrared Hyperbolic Metamaterials with Epitaxial ITO-In2O3 Multilayers. / Guo, Peijun; Diroll, Benjamin T.; Huang, Wei; Zeng, Li; Wang, Binghao; Bedzyk, Michael J.; Facchetti, Antonio; Marks, Tobin J; Chang, Robert P. H.; Schaller, Richard D.

In: ACS Photonics, Vol. 5, No. 5, 16.05.2018, p. 2000-2007.

Research output: Contribution to journalArticle

Guo, Peijun ; Diroll, Benjamin T. ; Huang, Wei ; Zeng, Li ; Wang, Binghao ; Bedzyk, Michael J. ; Facchetti, Antonio ; Marks, Tobin J ; Chang, Robert P. H. ; Schaller, Richard D. / Low-Loss Near-Infrared Hyperbolic Metamaterials with Epitaxial ITO-In2O3 Multilayers. In: ACS Photonics. 2018 ; Vol. 5, No. 5. pp. 2000-2007.
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