首页|Eliminating excess phase accumulation in a continuous perturbed heterogeneous planar photonic crystal

Eliminating excess phase accumulation in a continuous perturbed heterogeneous planar photonic crystal

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  • NSTL
  • Elsevier
We propose an asymmetric distribution of a hexagonal lattice for achieving near-zero group velocity with negative group delay. This study reports the effect of the continuous geometric perturbation on the photonic band diagram and consequently its impact on phase velocity, group velocity, and effective refractive index. We provide a promising method for modifying the photonic band diagram to obtain an exotic dispersion diagram. With this broadband spanning from the E band to the L band, the light pulse envelope travels with almost zero velocity and is promising for application in a wide variety of light-based devices.

Continuous perturbationExcess phase accumulationNegative group delayPlanar photonic crystal

Bornemann J.、Zavvari M.、Zehforoosh Y.、Arashmehr A.、Moradi S.

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Department of Electrical and Computer Engineering University of Victoria

Microwave and Antenna Research Center Urmia Branch Islamic Azad University

2022

10.1016/j.photonics.2021.100985

Photonics and Nanostructures

Photonics and Nanostructures

ISSN：1569-4410
年,卷(期)：2022.48
  • 31