Bibliographic Citation
| Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
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| DOI | 10.1063/1.106853 |
| Title | Optical Bloch waves in a semiconductor photonic lattice |
| Creator/Author | Gourley, P.L. ; Warren, M.E. ; Vawter, G.A. ; Brennan, T.M. ; Hammons, B.E. (Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)) |
| Publication Date | 1992 Jun 01 |
| OSTI Identifier | OSTI ID: 7234884 |
| DOE Contract Number | AC04-76DP00789 |
| Other Number(s) | Journal ID: ISSN 0003-6951; CODEN: APPLA |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: Applied Physics Letters; (United States); Journal Volume: 60:22 |
| Subject | 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; LIGHT SCATTERING; BLOCH THEORY; BRAGG REFLECTION; HETEROJUNCTIONS; MICROSTRUCTURE; WAVE PROPAGATION; CRYSTAL STRUCTURE; JUNCTIONS; REFLECTION; SCATTERING; SEMICONDUCTOR JUNCTIONS |
| Description/Abstract | We have observed multiple optical Bloch waves in a semiconductor photonic lattice. This photonic lattice comprises epitaxial quarter-wave periodic layers surrounding a periodic quantum-well region. After growth, the layers are structured laterally into periodic square unit cells by reactive-ion-beam etching. When photoexcited, the lattice emits a complex angular distribution of photons that reflects its periodic structure. Scattered light is distributed according to the Laue conditions in analogy with x-ray diffraction from a bulk crystal. Optical Bloch waves photostimulated in the lattice are analogous to electron Bloch waves in an atomic lattice. These optical Bloch waves exhibit long-range translational symmetry and local symmetry due to the shape of the unit cell. Interestingly, the far-field pattern of stimulated emission gives a direct mapping of the allowed Bloch wave vectors in the Brillouin zone. The mapping exhibits a wave-vector gap at the Bragg condition and may be associated with a photonic energy gap. In addition to measuring the intensity distribution of these Bloch waves, we directly measure the phase of the wave by polarization shearing interferometry. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: Pages: 2714-2716 |
| System Entry Date | 2009 Dec 17 |
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