The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Generating optical orbital angular momentum at visible wavelengths using a plasmonic metasurface
Open accessAbstract
Light beams with a helical phase-front possess orbital angular momentum along their direction of propagation in addition to the spin angular momentum that describes their polarisation. Until recently, it was thought that these two ‘rotational’ motions of light were largely independent and could not be coupled during light–matter interactions. However, it is now known that interactions with carefully designed complex media can result in spin-to-orbit coupling, where a change of the spin angular momentum will modify the orbital angular momentum and vice versa. In this work, we propose and demonstrate that the birefringence of plasmonic nanostructures can be wielded to transform circularly polarised light into light carrying orbital angular momentum. A device operating at visible wavelengths is designed from a space-variant array of subwavelength plasmonic nano-antennas. Experiment confirms that circularly polarised light transmitted through the device is imbued with orbital angular momentum of ±2ħ (with conversion efficiency of at least 1%). This technology paves the way towards ultrathin orbital angular momentum generators that could be integrated into applications for spectroscopy, nanoscale sensing and classical or quantum communications using integrated photonic devices.
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Cited by
Optical communications using orbital angular momentum beams
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Fundamentals and Applications of Metasurfaces
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Recent advances in the spin Hall effect of light
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Wang, B., Liu, W., Zhao, M., Wang, J., Zhang, Y., Chen, A., Guan, F., Liu, X., Shi, L., & Zi, J. (2020) · Nature Photonics · doi:10.1038/s41566-020-0658-1 · Cited by 499
Information metamaterials and metasurfaces
Cui, T. J., Liu, S., & Zhang, L. (2017) · Journal of Materials Chemistry C · doi:10.1039/c7tc00548b · Cited by 455
Metadata
- Authors
- Karimi, E., Schulz, S. A., De Leon, I., Qassim, H., Upham, J., & Boyd, R. W.
- Venue
- Light: Science & Applications
- Published
- 2014-05-09
- Volume
- 3
- Issue
- 5
- Pages
- e167-e167
- ISSN
- 2047-7538 (ISSN-L)
- OpenAlex
- W2114579353
- Cited by
- 834
- References
- 29
- FWCI
- 32.11
- Type
- journal article
- Language
- en
- Open access
- gold
- Licence
- creativecommons.org/licenses/by/3.0/ (tdm)
- creativecommons.org/licenses/by/3.0/ (vor)
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- Karimi, E., Schulz, S. A., De Leon, I., Qassim, H., Upham, J., & Boyd, R. W. (2014). Generating optical orbital angular momentum at visible wavelengths using a plasmonic metasurface. Light: Science & Applications. https://doi.org/10.1038/lsa.2014.48
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