Photonic band structure: The face-centered-cubic case employing nonspherical atoms
Abstract
We introduce a practical, new, face-centered-cubic dielectric structure which simultaneously solves two of the outstanding problems in photonic band structure. In this new ‘‘photonic crystal’’ the atoms are nonspherical, lifting the degeneracy at the W point of the Brillouin zone, and permitting a full photonic band gap rather than a pseudogap. Furthermore, this fully three-dimensional fcc structure lends itself readily to microfabrication on the scale of optical wavelengths. It is created by simply drilling three sets of holes 35.26° off vertical into the top surface of a solid slab or wafer, as can be done, for example, by chemical-beam-assisted ion etching.
- Publication:
-
Physical Review Letters
- Pub Date:
- October 1991
- DOI:
- 10.1103/PhysRevLett.67.2295
- Bibcode:
- 1991PhRvL..67.2295Y
- Keywords:
-
- Band Structure Of Solids;
- Brillouin Zones;
- Dielectrics;
- Energy Gaps (Solid State);
- Face Centered Cubic Lattices;
- Photonics;
- Crystal Structure;
- Crystal Surfaces;
- Energy Bands;
- Forbidden Transitions;
- Solid-State Physics;
- 42.50.-p;
- 41.10.Hv;
- 71.25.Cx;
- 84.90.+a;
- Quantum optics;
- Other topics in electronics radiowave and microwave technology and direct energy conversion and storage