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Title: Temperature-dependent optical constants of vanadium dioxide thin films deposited on polar dielectrics

Journal Article · · Optical Materials
 [1]; ORCiD logo [2]; ORCiD logo [3];  [1]; ORCiD logo [3];  [1];  [1];  [1];  [1];  [4];  [4]; ORCiD logo [3]; ORCiD logo [1]
  1. Texas Tech Univ., Lubbock, TX (United States)
  2. Texas Tech Univ., Lubbock, TX (United States); University of Texas Rio Grande Valley, Edinburg, TX (United States)
  3. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  4. Naval Research Lab. (NRL), Washington, DC (United States)
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Coating polar dielectrics with thin film vanadium dioxide (VO2) enables one to exploit the temperature-dependent phase transition within VO2 to actively tune and modulate surface phonon polaritons at mid-infrared. However, controlling the behavior of such systems requires intimate knowledge of the temperature-dependent optical constants of VO2, which depend greatly on the growth conditions and substrate material. Here, in this work, we accurately determine the complex optical constants of VO2 on polar dielectrics across the insulator-to-metal phase transition (IMT) using only normal incident reflectance spectra by analyzing the reflectance with Kramers–Kronig relations and thin film Fresnel equations. This non-ellipsometry technique offers an advantage in determining the refractive index using a standard infrared spectrometer.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
2406674
Report Number(s):
LA-UR--24-27187
Journal Information:
Optical Materials, Journal Name: Optical Materials Vol. 154; ISSN 0925-3467
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (23)

Recent Progress in Active Optical Metasurfaces journal April 2019
On the Optical Properties of Thin‐Film Vanadium Dioxide from the Visible to the Far Infrared journal August 2019
Actively Tunable Metasurfaces via Plasmonic Nanogap Cavities with Sub-10-nm VO2 Films journal April 2022
Optically-Triggered Nanoscale Memory Effect in a Hybrid Plasmonic-Phase Changing Nanostructure journal August 2015
Epitaxial VO 2 Nanostructures: A Route to Large-Scale, Switchable Dielectric Metasurfaces journal December 2017
VO 2 Thermochromic Metamaterial-Based Smart Optical Solar Reflector journal April 2018
Adaptive Multispectral Infrared Camouflage journal September 2018
Hybrid metamaterials for electrically triggered multifunctional control journal October 2016
Textured metastable VO 2 (B) thin films on SrTiO 3 substrates with significantly enhanced conductivity journal February 2014
Optical properties of VO 2 films at the phase transition: Influence of substrate and electronic correlations journal August 2016
Roles of strain and domain boundaries on the phase transition stability of VO 2 thin films journal October 2017
Inverting the thermal radiative contrast of vanadium dioxide by metasurfaces based on localized gap-plasmons journal August 2018
Thermal hysteresis measurement of the VO 2 dielectric function for its metal-insulator transition by visible-IR ellipsometry journal November 2018
Kramers-Kronig analysis of reflection data journal August 1965
Mid-infrared properties of a VO 2 film near the metal-insulator transition journal August 1996
Carrier concentration and lattice absorption in bulk and epitaxial silicon carbide determined using infrared ellipsometry journal October 1999
Infrared dielectric anisotropy and phonon modes of sapphire journal March 2000
Determination of the infrared complex magnetoconductivity tensor in itinerant ferromagnets from Faraday and Kerr measurements journal June 2007
Metal-insulator transitions journal October 1998
Frequency tunable near-infrared metamaterials based on VO2 phase transition journal January 2009
Thermal tuning of mid-infrared plasmonic antenna arrays using a phase change material journal January 2013
Low-loss, infrared and terahertz nanophotonics using surface phonon polaritons journal January 2015
Coupled surface plasmon–phonon polariton nanocavity arrays for enhanced mid-infrared absorption journal September 2022

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Related Subjects

36 MATERIALS SCIENCE
Complex optical constants
Insulator-to-metal phase transition
Non-ellipsometry technique
Polar dielectrics
Vanadium dioxide