Abstract
We report the first experimental demonstration of four-wave mixing using electromagnetically induced transparency in cold atoms. Backward-wave, phase-matched difference-frequency conversion is achieved at optical powers of a few nanowatts and at energies of less than a picojoule.
- Received 17 June 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.183601
©2004 American Physical Society