Fig. 2: Spectral emissivity of the reconfigurable structure in two stretching scenarios.
From: Continuously variable emission for mechanical deformation induced radiative cooling
a Two scenarios of the reconfigurable nanophotonic structure under stretching. Top: scenario I (constant width w) for the ideal stretching or compression due to the mechanical strain. Bottom: scenario II (constant width wt) for the real stretching situation. b The spectral emissivity of the reconfigurable metamaterials for scenario I (red curve) and scenario II (yellow curve) under 60% strain. The blue shading area shows the infrared atmospheric transparent window. c The strain ϵ dependent overall reflectively (blue solid line with squares) and emissivity (brown solid line with diamonds) for scenario II. Here, the overall solar reflectivity Rsolar is calculated from 0.4 μm to 2.5 μm, and the emissivity εIR is calculated from 8 μm to 13 μm. The inset displays the stretching scenario II.
