We explore the unconventional propagation of light in a three-dimensional (3D) superlattice of coupled resonant cavities in a 3D photonic band gap crystal (Fig. 1). Such a 3D cavity superlattice is the photonic analogue of the Anderson model for spins and electrons in the limit of zero disorder . Using the plane-wave expansion method , we calculate the dispersion relations of the 3D cavity superlattice with the cubic inverse woodpile structure [3,4] that reveal five coupled-cavity bands. These bands have quadrupolar symmetry and are the optical analogues of d-orbitals in solid-state physics [4,5]. Therefore, one might naively expect neighboring cavities to couple mostly in diagonal directions.
|Title of host publication||2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019|
|Publication status||Published - Jun 2019|
|Event||Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich Trade Fair Centre, Munich, Germany|
Duration: 23 Jun 2019 → 27 Jun 2019
|Conference||Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference, CLEO/Europe-EQEC 2019|
|Abbreviated title||CLEO/Europe-EQEC 2019|
|Period||23/06/19 → 27/06/19|