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Optical and Quantum Electronics
Erschienen in: Optical and Quantum Electronics 8/2020

01.08.2020

Exception point induced flat-band and waveguide laser

verfasst von: Xiao-xue Li, Er-pan Fan, Zhang-xin Wang, Yun-Tuan Fang

Erschienen in: Optical and Quantum Electronics | Ausgabe 8/2020

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Abstract

In order to study the exceptional point (EP) properties in the photonic crystal waveguide, we construct the two-dimensional photonic crystal waveguide with the parity–time symmetry configuration. With the calculation of the eigen frequencies, the evolution of the waveguide mode bands discloses two EP-induced flat bands. The transmittance and reflectance at the two flat bands show a huge amplification property and the structure become a waveguide laser. The waveguide lasing is due to the common properties of the EP and the flat band. The results have been demonstrated by the transmission spectra, Poynting vector distribution and simulations of field propagation.
Vorheriger Artikel Monolithic light emitting device and light detecting device fabricated with a commercial LED wafer
Nächster Artikel First-principles insights on the stability, linear and nonlinear optical properties of new potential thioborates AgBS2, CuBS2

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Metadaten
Titel
Exception point induced flat-band and waveguide laser
verfasst von
Xiao-xue Li
Er-pan Fan
Zhang-xin Wang
Yun-Tuan Fang
Publikationsdatum
01.08.2020
Verlag
Springer US
Erschienen in
Optical and Quantum Electronics / Ausgabe 8/2020
Print ISSN: 0306-8919
Elektronische ISSN: 1572-817X
DOI
https://doi.org/10.1007/s11082-020-02480-9

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