Unidirectional electromagnetic wave transmission in hyperbolic-gyroelectric metamaterials

Qiuyue Zhang

doi:10.1117/12.2605360

1 November 2021 Unidirectional electromagnetic wave transmission in hyperbolic-gyroelectric metamaterials

Qiuyue Zhang

Proceedings Volume 12057, Twelfth International Conference on Information Optics and Photonics; 120571O (2021) https://doi.org/10.1117/12.2605360
Event: Twelfth International Conference on Information Optics and Photonics, 2021, Xi'an, China

Abstract

Thus far, the studies of unidirectional transmission based on nontrivial photonic topological states have mostly relied on precisely designed periodic structures. To realize unidirectional transmission on a continuous homogeneous interface, a hyperbolic-gyroelectric metamaterial composed of alternating dielectric and magnetized semiconductor layers is proposed. The application of an externally applied magnetic field along the stacking direction of dielectric and magnetized semiconductor layers leads to the breaking of the time-reversal symmetry and the separation of the bulk modes of the metamaterial. The existence of the surface states in the spatial gap between two bulk modes of the metamaterial is verified by analytical calculation. The unidirectionality and the backscattering-immune properties of the surface states are further demonstrated by numerical simulation of electromagnetic waves propagation along interfaces with sharp corners. By connecting the interfaces of two identical hyperbolic-gyroelectric metamaterials with reversed magnetic fields, the number of unidirectional surface states is doubled. As a possible application of multimode surface states, a continuously tunable power splitter is proposed.

Citation Download Citation

Qiuyue Zhang "Unidirectional electromagnetic wave transmission in hyperbolic-gyroelectric metamaterials", Proc. SPIE 12057, Twelfth International Conference on Information Optics and Photonics, 120571O (1 November 2021); https://doi.org/10.1117/12.2605360

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available