Vanderbilt University — Caldwell Nanophotonic Materials and Devices Lab

Snapshot

Why it matters internationally

The Caldwell Lab sits on the nanophotonics side of the field but clearly belongs in the map. Its listed infrared characterization capabilities explicitly include reflection, absorption, emissivity, thermal emission, and angle-dependent measurements, and Vanderbilt’s research pages highlight recent work on high-emissivity thermal metasurfaces. It is a strong institution for advanced infrared optical-property characterization and engineered thermal emission.

Scope of activity

Relevant unit

• Caldwell Nanophotonic Materials and Devices Lab (Vanderbilt). A nanophotonics group with documented infrared characterization infrastructure that explicitly includes emissivity and thermal emission.

Radiative properties measured

Reflection · absorption · emissivity · thermal emission · angle-dependent infrared measurements.

Methodology

Advanced infrared optical-property characterization including angle-dependent measurements; work on high-emissivity thermal metasurfaces; integration of nanophotonic design with experimental thermal-emission characterization.

Application domains

• High-emissivity thermal metasurfaces
• Engineered thermal emission
• Nanophotonics

Why Vanderbilt Caldwell Lab is a reference pole

Thermal metasurfaces are a direct challenge to the traditional idea of emissivity as a material property: they make it a function of subwavelength architecture. The Caldwell Lab’s explicit angle-dependent infrared capability is well matched to this research agenda, because the emission from a metasurface is fundamentally anisotropic. Laboratories that can measure what their nanostructures actually do — not only simulate it — are the ones that keep the engineered-emissivity field grounded experimentally.

External sources

• Lab Capabilities and Layout — Caldwell Nanophotonic Materials and Devices Lab