https://mao-receptor.com/index.....php/sting-badly-adj
We use mechanical wrinkling to present surface diffraction gratings (through the nano into the micron scales) on one face of an elastomeric rectangular parallelepiped-shaped slab and explore the functions, into the understood tints, of wrinkling pattern, wavelength, the directionality of event light and observance perspectives. We propose a simple design that satisfactorily records for all experimental findings. Employing polydimethylsiloxane (PDMS), which easily swells in the presence of n