Generation of Diffraction-Free Optical Beams Using Wrinkled Membranes
Optics
2015-12-04 v1 Soft Condensed Matter
Abstract
We report the first demonstration of wrinkled membranes as a kind of optical focusing devices, which are low cost, light weight and flexible. Our device consists of concentric wrinkle rings on a gold-PDMS bilayer membrane, which converts collimated illuminations to diffraction-free focused beams. Beam diameters of 300-400 {\mu}m have been observed in the visible range. By comparing the theoretically calculated and experimentally measured focal spot profiles, we predict a focal spot size as small as around 50 {\mu}m if fabrication eccentricity can be eliminated.
Cite
@article{arxiv.1304.7874,
title = {Generation of Diffraction-Free Optical Beams Using Wrinkled Membranes},
author = {Ran Li and Hui Yi and Xiao Hu and Leng Chen and Guangsha Shi and Weimin Wang and Tian Yang},
journal= {arXiv preprint arXiv:1304.7874},
year = {2015}
}
Comments
6 pages, 5 figures