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Near-field imaging of spin-locked edge states in all-dielectric topological metasurfaces
Abstract
A new class of phenomena stemming from topological states of quantum matter has recently found a variety of analogies in classical systems. Spin-locking and one-way propagation have been shown to drastically alter scattering of electromagnetic waves, thus offering an unprecedented robustness to defects and disorder. Despite these successes, bringing these new ideas to practical grounds meets a number of serious limitations. In photonics, when it is crucial to implement topological photonic devices on a chip, two major challenges are associated with electromagnetic dissipation into heat and out-of-plane radiation into free space. Both these mechanisms may destroy the topological state and seriously affect the device performance. Here, we demonstrate experimentally that the topological order for light can be implemented in all-dielectric on-chip prototype metasurfaces, which mitigate the effect of Ohmic losses by using exclusively structured dielectric materials, and we reveal that coupling of the system to the radiative continuum does not affect topological properties. We demonstrate the spin-Hall effect of light for spin-polarized topological edge states through near-field spectroscopy measurements.
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“This has been experimentally realized in the microwave regime for a 2D array of ceramic disks (Slobozhanyuk et al., 2019).”
From Topological photonics (2019) · cites this paper as Slobozhanyuk et al., 2019
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“Recently, these ideas have also been extended to alldielectric bianisotropic metamaterials (Slobozhanyuk, Mousavi et al., 2017;Slobozhanyuk et al., 2019), which may offer advantages for reducing Ohmic losses, scaling up to optical frequencies, and increasing compatibility with on-chip integration.”
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Dong, J.-W., Chen, X.-D., Zhu, H., Wang, Y., & Zhang, X. (2017) · Nature Materials · doi:10.1038/nmat4807 · Cited by 730
Experimental realization of photonic topological insulator in a uniaxial metacrystal waveguide
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Cited by
Sorted by citations
Ozawa, T., Price, H. M., Amo, A., Goldman, N., Hafezi, M., Lu, L., Rechtsman, M. C., Schuster, D., Simon, J., Zilberberg, O., et al. (2019) · Reviews of Modern Physics · doi:10.1103/revmodphys.91.015006 · Cited by 3,722
Metadata
- Authors
- Slobozhanyuk, A., Shchelokova, A. V., Ni, X., Hossein Mousavi, S., Smirnova, D. A., Belov, P. A., Alù, A., Kivshar, Y. S., & Khanikaev, A. B.
- Affiliations
- Department of Nanophotonics and Metamaterials, ITMO University 1 , St. Petersburg 197101, Russia
- Department of Electrical Engineering, Grove School of Engineering, The City College of the City University of New York 3 , 140th Street and Convent Avenue, New York, New York 10031, USA
- Microelectronics Research Centre, Cockrell School of Engineering, University of Texas at Austin 5 , Austin, Texas 78758, USA
- Nonlinear Physics Centre, Australian National University 2 , Canberra, ACT 2601, Australia
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2019-01-21
- Volume
- 114
- Issue
- 3
- ISSN
- 0003-6951
- 1077-3118
- Cited by
- 53
- References
- 12
- Language
- en
- Funders
- Australian Research Council
- National Science Foundation (CMMI-1537294, EFRI-1641069)
- Russian Science Foundation (16-19-10538)
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- Slobozhanyuk, A., Shchelokova, A. V., Ni, X., Hossein Mousavi, S., Smirnova, D. A., Belov, P. A., Alù, A., Kivshar, Y. S., & Khanikaev, A. B. (2019). Near-field imaging of spin-locked edge states in all-dielectric topological metasurfaces. Applied Physics Letters. https://doi.org/10.1063/1.5055601
