Dielectric metasurfaces for distance measurements and three-dimensional imaging

Jin C, Afsharnia M, Berlich R, Fasold S, Zou C, Arslan D, Staude I, Pertsch T, Setzpfandt F (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Advanced Photonics SPIE

Book Volume: 1

Article Number: 036001

Journal Issue: 3

DOI: 10.1117/1.AP.1.3.036001

Abstract

Ultrathin metasurfaces have shown the capability to influence all aspects of light propagation. This has made them promising options for replacing conventional bulky imaging optics while adding advantageous optical properties or functionalities. We demonstrate that such metasurfaces can also be applied for single-lens three-dimensional (3-D) imaging based on a specifically engineered point-spread function (PSF). Using Huygens' metasurfaces with high transmission, we design and realize a phase mask that implements a rotating PSF for 3-D imaging. We experimentally characterize the properties of the realized double-helix PSF, finding that it can uniquely encode object distances within a wide range. Furthermore, we experimentally demonstrate wide-field depth retrieval within a 3-D scene, showing the suitability of metasurfaces to realize optics for 3-D imaging, using just a single camera and lens system.

Involved external institutions

Fraunhofer-Institut für Angewandte Optik und Feinmechanik (IOF) / Fraunhofer Institute for Applied Optics and Precision Engineering DE Germany (DE) Friedrich-Schiller-Universität Jena DE Germany (DE)

How to cite

APA:

Jin, C., Afsharnia, M., Berlich, R., Fasold, S., Zou, C., Arslan, D.,... Setzpfandt, F. (2019). Dielectric metasurfaces for distance measurements and three-dimensional imaging. Advanced Photonics, 1(3). https://doi.org/10.1117/1.AP.1.3.036001

MLA:

Jin, Chunqi, et al. "Dielectric metasurfaces for distance measurements and three-dimensional imaging." Advanced Photonics 1.3 (2019).

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