2009/06/03 by Jing-Nuo Wu, Chih‐Hsien Huang, Chih-Hsien Huang +3 · 1 citation
Engineering · Mathematics · Physics and Astronomy · #Anisotropy #Atom (system on chip) #Condensed matter physics #Field (mathematics) #Isotropy #Mathematics #Photon #Photonic Crystals and Applications #Photonic and Optical Devices #Photonic crystal #Physics #Quantum mechanics #Spontaneous emission #Thermal Radiation and Cooling Technologies #cond-mat.mtrl-sci #cond-mat.other
paper · pdf · doi:10.1103/physreva.81.023827
16 pages, 4 figures
arxiv created 2009/06/03 · openalex publication_date 2010/02/24 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Spontaneous emission (SE) from a two-level atom in an anisotropic photonic crystal (PC) is investigated by the fractional calculus. Physical phenomena of the SE are studied analytically by solving the fractional kinetic equations of the SE. There is a dynamical discrepancy between the SE of anisotropic and isotropic PCs. We find that, contrary to the SE phenomenon of the isotropic PC, the SE near the band edge of an anisotropic PC shows no photon-atom bound state. It is consistent with the experimental results of Barth, Schuster, Gruber, and Cichos [Phys. Rev. Lett. 96, 243902 (2006)] that the anisotropic property of the system enhances the SE. We also study effects of dispersion curvatures on the changes of the photonic density of states and the appearance of the diffusion fields in the SE.