Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Enhanced absorption in a 1D photonic crystal based on 3D Dirac semimetals

Not Accessible

Your library or personal account may give you access

Abstract

We theoretically reveal the absorption properties of a 1D periodic structure associated with alternating 3D Dirac semimetals and dielectric layers. The absorption spectra of this structure under both TM and TE polarized waves have been shown, where greatly enhanced absorption is achieved at a certain angle under the TM wave because of the zero effective perpendicular permittivity of the periodic structure. We also reveal that the absorption behavior in this structure can be engineered by the thicknesses of the 3D Dirac semimetal film and the dielectric layer in the unit cell of the periodic structure. In contrast to conventional absorbers made of the metals, the absorption in this periodic structure is highly controllable by the Fermi energy of 3D Dirac semimetals. Our results provide an alternative route to control absorption using 3D Dirac semimetals, which offers alternative options for possible device applications.

© 2023 Optica Publishing Group

Full Article  |  PDF Article
More Like This
Nonreciprocal Goos-Hänchen shift in a Dirac semimetal based asymmetric photonic crystal structure

Pengya Hu, Jun Zhou, Qi Song, and Haixia Da
Appl. Opt. 63(2) 459-466 (2024)

Dynamically tunable coherent perfect absorption based on bulk Dirac semimetal

Ting Zhou, Panpan Fang, Shihao Ban, Yong Li, Haiyu Meng, Xiang Zhai, Hongjian Li, and Lingling Wang
J. Opt. Soc. Am. B 37(7) 1987-1995 (2020)

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved