Parity–time synthetic photonic lattices
Open accessAbstract
The development of new artificial structures and materials is today one of the major research challenges in optics. In most studies so far, the design of such structures has been based on the judicious manipulation of their refractive index properties. Recently, the prospect of simultaneously using gain and loss was suggested as a new way of achieving optical behaviour that is at present unattainable with standard arrangements. What facilitated these quests is the recently developed notion of 'parity-time symmetry' in optical systems, which allows a controlled interplay between gain and loss. Here we report the experimental observation of light transport in large-scale temporal lattices that are parity-time symmetric. In addition, we demonstrate that periodic structures respecting this symmetry can act as unidirectional invisible media when operated near their exceptional points. Our experimental results represent a step in the application of concepts from parity-time symmetry to a new generation of multifunctional optical devices and networks.
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In the photonic mesh lattice setup, pulses in two coupled optical fibre loops simulate a wavepacket in a 1D lattice.
“In our 'photonic mesh lattice' set-up 31,32 , pulses are injected into two coupled optical fibre loops, so that the temporal evolution of the outgoing pulse-train envelope simulates a wavepacket in a 1D lattice.”
From Experimental measurement of the Berry curvature from anomalous transport (2017) · cites this paper as [32]
The method's versatility should allow it to be applied in configurations including systems with gain and loss and/or nontrivial topological invariants.
“This versatility of this scheme should allow it to be applied in a variety of configurations, including systems with gain and loss 32 and/or nontrivial topological invariants.”
From Experimental measurement of the Berry curvature from anomalous transport (2017) · cites this paper as [32]
The setup uses a time-multiplexing linear optical scheme with two coupled fibre loops of different lengths.
“In our experiment, we employ a time-multiplexing, linear optical scheme based on two coupled fibre loops of different lengths 31,32 as shown in Fig. 1a.”
From Experimental measurement of the Berry curvature from anomalous transport (2017) · cites this paper as [32]
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- Authors
- Regensburger, A., Bersch, C., Miri, M.-A., Onishchukov, G., Christodoulides, D. N., & Peschel, U.
- Affiliations
- Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
- University of Central Florida (US)
- Max Planck Institute for the Science of Light (DE)
- Corresponding author
- Christodoulides, Demetrios N.
- Peschel, Ulf
- ORCID
- Venue
- Nature
- Published
- 2012-08
- Volume
- 488
- Issue
- 7410
- Pages
- 167-171
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2152074534
- Cited by
- 2,019
- References
- 46
- Citations by year
- 2026: 104 · 2025: 131 · 2024: 146 · 2023: 156 · 2022: 179 · 2021: 156 · 2020: 170 · 2019: 168 · 2018: 148 · 2017: 163 · 2016: 177 · 2015: 129 · 2014: 107 · 2013: 74 · 2012: 10
- FWCI
- 52.97
- Type
- journal article
- Language
- en
- Open access
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature (publishedVersion)
- PubMed (publishedVersion)
- Journal of International Crisis and Risk Communication Research (submittedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion)
- Funders
- National Science Foundation
- Deutsche Forschungsgemeinschaft
- Division of Electrical, Communications and Cyber Systems
- Air Force Office of Scientific Research
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Non-Hermitian Physics
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Metamaterials and Metasurfaces Applications
- Physical Sciences › Physics and Astronomy › Acoustics and Ultrasonics › Random lasers and scattering media
- Keywords
- PT symmetry, optical gain and loss, exceptional points, unidirectional invisibility, temporal lattice, light transport
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