Acta Optica Sinica, Volume. 38, Issue 9, 0927001(2018)
Spontaneous Emission Characteristics of Atoms near Topological Insulator Slab with Finite Thickness
The spontaneous emission properties of the two-level atoms placed near a topological insulator (TI) slab with a finite thickness or inside its cavity are investigated. The spontaneous emission rates of the dipole parallel or perpendicular to the material boundary are expressed via the dyadic Green function. The reflection matrix of this slab is calculated based on the multiple reflection theory, and the various factors which influence the spontaneous emission rate are numerically calculated and analyzed. The research results show that, when the dissipation is ignored, the spontaneous emission rate of the parallel dipole is suppressed, however, that of the perpendicular dipole is enhanced. When the dissipation of the slab or its cavity is included, the TI can effectively suppress the spontaneous emission rate of the atoms and make all of the decays of atoms near it along any diploe directions suppressed.
Get Citation
Copy Citation Text
Ran Zeng, Jinxin Hou, Chi Wang, Qiliang Li, Meihua Bi, Guowei Yang, Yaping Yang. Spontaneous Emission Characteristics of Atoms near Topological Insulator Slab with Finite Thickness[J]. Acta Optica Sinica, 2018, 38(9): 0927001
Category: Quantum Optics
Received: Dec. 27, 2017
Accepted: May. 2, 2018
Published Online: May. 9, 2019
The Author Email: