Fabry-Pérot resonance coupling associated exceptional points in a composite grating structure

doi:10.1088/1674-1056/27/5/054201

Abstract The exceptional point (EP) is a significant and attractive phenomenon in an open quantum system. The scattering properties of light are similar to those in the open quantum system, which makes it possible to achieve EP in the optic system. Here we investigate the EP in a Fabry-Pérot (F-P) resonant coupling structure. The coupling between different types of F-P resonances leads to a near zero reflection, which results in a degeneration of eigenstates and thus the appearing of EP. Furthermore, the multi-wavelength EPs and unidirectional invisibility can be achieved which may be used in integrated photonics systems.

Keywords: exceptional point Fabry-Pérot resonance metallic grating

Received: 23 December 2017
Revised: 15 January 2018
Accepted manuscript online:

PACS:	42.15.Eq	(Optical system design)
	42.25.Fx	(Diffraction and scattering)
	42.79.Dj	(Gratings)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos.61377054 and 61675140).

Corresponding Authors: Lin Pang
E-mail: lin.lpang@gmail.com

Cite this article:

Zhi-Sen Jiang(蒋之森), De-Jiao Hu(胡德娇), Lin Pang(庞霖), Fu-Hua Gao(高福华), Ping Wang(王平) Fabry-Pérot resonance coupling associated exceptional points in a composite grating structure 2018 Chin. Phys. B 27 054201

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Fabry-Pérot resonance coupling associated exceptional points in a composite grating structure

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