Objective:
Demonstrate that Mie resonance-based metamaterials with isotropic electromagnetic responses
can be used for tuning thermal radiative properties.

Approach: Near-field
energy density uw
calculation performed by combining the effective medium theory with fluctuational electrodynamics.

Results
and Significance:
Silicon-based metamaterials lead to resonance of the thermal near
field in the near infrared at low temperature. These metamaterials will impact significantly low-grade
waste heat recovery via thermophotovoltaic power generators.