Shrinking light to allow forbidden transitions on the atomic scale
Abstract
Spontaneous emission, in which an excited electron lowers its energy by emitting a photon, is a fundamental process in light-matter interactions. In principle, the electron can relax from the excited state to any unoccupied lower energy level. In practice, however, most of these transitions are too slow and so are effectively forbidden. Rivera et al. show theoretically that the plasmonic excitations associated with two-dimensional materials can be used to enhance and control the light-matter interaction. Transitions that were once considered forbidden can thus be accessed, opening up the entire spectrum of an optical emitter.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 15, 2016
- Source ID
- 10.1126/science.aaf6308
Entities
People
- Bo Zhen
- Ido Kaminer
- John D. Joannopoulos
- Marin Soljačić
- Nicholas Rivera
Organizations
- Army Research Office
- Marie Curie
- Massachusetts Institute of Technology
- United States Department of Energy