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Updated: Jan 29, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

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Published on: June 7, 2019

Metasurfaces with Phase-Change Materials for Mid-Wave Infrared Thermal Management.

Viktoriia E Babicheva¹, Heungsoo Kim², Alberto Piqué²

¹Department of Electrical and Computer Engineering, University of New Mexico, MSC01 1100, 1 University of New Mexico, Albuquerque, NM 87131, USA.

|January 28, 2026

Summary

This summary is machine-generated.

Metasurface coatings using vanadium dioxide (VO2) enable temperature-independent optical systems. These novel coatings effectively mask thermal signatures by maintaining constant thermal emission across a wide temperature range.

Keywords:

Planck thermal emission engineered emissivity coating insulator-to-metal transition optical antennas thermal radiation thermochromic vanadium dioxide

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Published on: January 26, 2014

Area of Science:

Metamaterials and Nanophotonics
Infrared Optics
Materials Science

Background:

Temperature fluctuations cause significant variations in blackbody emission, complicating optical and sensing systems.
Compensating for mid-wave infrared (MWIR) spectral radiance changes (3-5 µm) is challenging due to a nearly 10-fold increase in radiance from 30 °C to 80 °C.
Vanadium dioxide (VO2) exhibits an insulator-metal transition with potential for thermal management, but simple thin films lack sufficient compensation capabilities.

Purpose of the Study:

To develop temperature-independent optical and sensing systems by suppressing radiance changes.
To demonstrate metasurface coatings capable of compensating for large MWIR spectral variations.
To achieve constant thermal emission over a broad temperature range (30 °C to 80 °C).

Main Methods:

Fabrication of metasurface coatings comprising an array of metal-VO2-metal antennas.
Tuning antenna resonances to counteract the temperature-dependent Planck blackbody radiation curve.
Combining antennas of various lateral sizes to collectively track the Planck change.

Main Results:

Demonstrated metasurface coatings that maintain constant thermal emission at a target wavelength from 30 °C to 80 °C.
Achieved compensation by collective resonance tracking across multiple antenna sizes.
The metasurface exhibited negligible apparent temperature change, effectively masking thermal signatures.

Conclusions:

Metasurface coatings offer a viable solution for temperature-independent optical and sensing applications.
The designed metal-VO2-metal antennas provide necessary optical contrast and temperature derivative for compensation.
This approach effectively masks thermal signatures for infrared detectors by leveraging the properties of VO2.