Diffraction-Pattern Based on Spontaneous Wrinkled Thin Films

Abstract

We investigate wrinkled thin films by small angle light scattering and microscope, demonstrating that wrinkled thin films are gratings. The diversity of diffraction patterns is realized by a simple light path through wrinkles. Fourier transform is introduced to explain the position and pattern of diffraction orders. The analysis could be a fast and quantized characterization for complex wrinkles.