The first demonstration of thermal actuated reconfigurable metamaterial in the near-infrared.
We introduce mechanically reconfigurable photonic metamaterials (RPMs) as a flexible platform for realizing metamaterial devices with reversible and large-range tunable characteristics in the optical part of the spectrum. Here we illustrate this concept for a temperature-driven RPM exhibiting reversible relative transmission changes of up to 50%.

Ref:
Reconfigurable photonic metamaterials
J. Y. Ou, E. Plum, L. Jiang, and N. I. Zheludev
Nano Lett. 11(5), 2142-2144 (2011) doi: 10.1021/nl200791r