Fig. 3
From: Highly Stretchable Micro/Nano Wrinkle Structures for Infrared Stealth Application
Mechanical modulation of the broadband reflectance. a The change in the surface morphology and the reflection of infrared light of the Ag triangular wrinkle structures before mechanical actuation. b After mechanical actuation. c The infrared reflectance spectra of the Ag triangular wrinkle structures before mechanical actuation. The total reflectance (red traces) are shown along with their reflection (black traces) and diffuse (blue traces) components. d After mechanical actuation. e Plots of the total, reflection, and diffuse peak reflectance of the Ag triangular wrinkle structures as functions of the applied length strain. f Stability test of the Ag triangular wrinkle structures with stretching/releasing over 500 cycles