https://doi.org/10.1140/epjd/s10053-025-01107-6
Regular Article - Photons
Spontaneous emission of atom in the LCMM combined square
1
MOE Key Laboratory of Artificial Microstructure Materials, School of Physical Science and Engineering, Tongji University, 200092, Shanghai, China
2
Department of Physical Sciences, Physics Division, College of Science, Jazan University, 45142, Jazan, Saudi Arabia
Received:
24
June
2025
Accepted:
2
December
2025
Published online:
24
December
2025
As is well known, the spontaneous emission of atoms is influenced by the electromagnetic environment. In this work, we resort to a special Hyperbolic Metamaterial (HMM), named as the linear cross metamaterial (LCMM). The isofrequency wavevector surface of the LCMM exhibits a biconical shape with linear dispersion, which holds great promise for a variety of applications. Furthermore, LCMM combined squares displays more unique electromagnetic characteristics, where electromagnetic waves form an energy flow loop. Using the finite-difference time-domain (FDTD) method, we calculate the SpE rate of atom through the radiative energy fluxes of a corresponding dipole. The results show that LCMM and LCMM combined squares have a large degree of freedom to control the SpE rate of atoms, and have high anisotropy that is conducive to quantum interference of three-level atoms. These results provide valuable insights into the mechanisms of LCMM and contribute to the design of novel tunable devices for future applications.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
