Optical design and fabrication techniques are crucial for making optical elements. From conventional lenses to diffractive optical elements and to recent metasurfaces, various types of optical elements have been proposed to manipulate light where optical materials are fabricated into desired structures. Here, we propose a scattering optical element (SOE) that exploits multiple light scattering and wavefront shaping. Instead of fabricating optical materials, the SOE consists of a disordered medium and a photopolymer-based wavefront recorder, with shapes impinging on light on demand. With the proposed stand-alone SOEs, we experimentally demonstrate control of various properties of light, including intensity, polarization, spectral frequency, and near field. Due to the tremendous freedom brought about by disordered media, the proposed approach will provide unexplored routes to manipulate arbitrary optical fields in stand-alone optical elements.
Bibliographical noteFunding Information:
This work was supported by KAIST and the National Research Foundation of Korea (2015R1A3A2066550, 2014K1A3A1A09063027, 2013M3C1A3063046, 2014M3C1A3052537, 2012-M3C1A1-048860) and Innopolis Foundation (A2015DD126). The authors acknowledge the support by Covestro AG (formerly Bayer MaterialScience AG) for providing the photopolymer film.
© 2016 American Chemical Society.
- multiple scattering
- optical element
- optical near field
- volume hologram
- wavefront shaping
ASJC Scopus subject areas
- General Materials Science
- General Engineering
- General Physics and Astronomy