Elastomeric multilayer interference

Elastically-deformable distributed Bragg reflector membranes are “Rubbery mirrors” that can be reversibly colour-tuned.

Elastically-deformable Distributed Bragg Reflector (DBR) membranes are “Rubbery mirrors” that can be reversibly colour-tuned across the full visible spectrum by stretching, compressing, inflating into a balloon or any other kind of deformation that changes the thickness of the membrane.

Starting from an initial bilayer consisting of two rubbers, the multifolding Origami manufacture process multiplies the number of layer stacks, leading to an enhancement of reflectance at a wavelength set by the layer thicknesses.

The figures show an example of a pressure-induced bandgap tuning of a “Multilayer bubble”.

Rubber DBR

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