The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.
Reversing the pump dependence of a laser at an exceptional point
Open accessAbstract
When two resonant modes in a system with gain or loss coalesce in both their resonance position and their width, a so-called exceptional point occurs, which acts as a source of non-trivial physics in a diverse range of systems. Lasers provide a natural setting to study such non-Hermitian degeneracies, as they feature resonant modes and a gain material as their basic constituents. Here we show that exceptional points can be conveniently induced in a photonic molecule laser by a suitable variation of the applied pump. Using a pair of coupled microdisk quantum cascade lasers, we demonstrate that in the vicinity of these exceptional points the coupled laser shows a characteristic reversal of its pump dependence, including a strongly decreasing intensity of the emitted laser light for increasing pump power.
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Cites
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Non-Hermitian Quantum Mechanics
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Cited by
Exceptional points enhance sensing in an optical microcavity
Chen, W., Kaya Özdemir, Ş., Zhao, G., Wiersig, J., & Yang, L. (2017) · Nature · doi:10.1038/nature23281 · Cited by 2,084
Parity–time symmetry and exceptional points in photonics
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Self-citationSpawning rings of exceptional points out of Dirac cones
Zhen, B., Hsu, C. W., Igarashi, Y., Lu, L., Kaminer, I., Pick, A., Chua, S.-L., Joannopoulos, J. D., & Soljačić, M. (2015) · Nature · doi:10.1038/nature14889 · Cited by 861
Observation of topological edge states in parity–time-symmetric quantum walks
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Topological hybrid silicon microlasers
Zhao, H., Miao, P., Teimourpour, M. H., Malzard, S., El-Ganainy, R., Schomerus, H., & Feng, L. (2018) · Nature Communications · doi:10.1038/s41467-018-03434-2 · Cited by 429
Metadata
- Authors
- Brandstetter, M., Liertzer, M., Deutsch, C., Klang, P., Schöberl, J., Türeci, H. E., Strasser, G., Unterrainer, K., & Rotter, S.
- Venue
- Nature Communications
- Published
- 2014-06-13
- Volume
- 5
- Issue
- 1
- Pages
- 4034-4034
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2110821423
- Cited by
- 508
- References
- 42
- FWCI
- 26.29
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Brandstetter, M., Liertzer, M., Deutsch, C., Klang, P., Schöberl, J., Türeci, H. E., Strasser, G., Unterrainer, K., & Rotter, S. (2014). Reversing the pump dependence of a laser at an exceptional point. Nature Communications. https://doi.org/10.1038/ncomms5034
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