Imperial College London
Alternate

ProfessorStefanMaier

Faculty of Natural Sciences, Department of Physics

Lee-Lucas Chair in Experimental Physics
 
 
 
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Contact

 

+44 (0)20 7594 6063s.maier Website CV

 
 
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Location

 

Huxley 903Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ren:2020:10.1038/s41565-020-0768-4,
author = {Ren, H and Fang, X and Jang, J and Buerger, J and Rho, J and Maier, S},
doi = {10.1038/s41565-020-0768-4},
journal = {Nature Nanotechnology},
pages = {948--955},
title = {Complex-amplitude metasurface-based orbital angular momentum holography in momentum space},
url = {http://dx.doi.org/10.1038/s41565-020-0768-4},
volume = {15},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Digital optical holograms can achieve nanometer-scale resolution thanks to recent advances in metasurface technologies. This has raised hopes for applications in data encryption, data storage, information processing and displays. However, the hologram bandwidth has remained too low for any practical use. To overcome this limitation, information can be stored in the orbital angular momentum (OAM) of light, as this degree of freedom has an unbounded set of orthogonal helical modes that could function as information channels. Thus far, OAM holography has been achieved using phase-only metasurfaces, which however are marred by channels crosstalk. As a result, multiplex information from only 4 channels has been demonstrated. Here we demonstrate an OAM holography technology that is capable of multiplexing up to 200 independent OAM channels. This is  achieved  by  designing  a  complex-amplitude  metasurface  in momentum-space  capable  of complete and independent amplitude and phase manipulation. Information is then extracted by Fourier  transform  using  different  OAM  modes of  light,  allowing  lensless  reconstruction  and holographic videos being displayed. Our metasurface can be 3D printed in a polymer matrix on SiO2 for large-area fabrication.
AU  - Ren,H
AU  - Fang,X
AU  - Jang,J
AU  - Buerger,J
AU  - Rho,J
AU  - Maier,S
DO  - 10.1038/s41565-020-0768-4
EP  - 955
PY  - 2020///
SN  - 1748-3387
SP  - 948
TI  - Complex-amplitude metasurface-based orbital angular momentum holography in momentum space
T2  - Nature Nanotechnology
UR  - http://dx.doi.org/10.1038/s41565-020-0768-4
UR  - http://hdl.handle.net/10044/1/82662
VL  - 15
ER  -
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