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- Probing degenerate two-level atomic media by coherent optical heterodyning
- Akulshin, A. M.; McLean, R. J.; Sidorov, A. I.; Hannaford, P.
- We analyse how light-induced coherent population oscillations and ground-state Zeeman coherence in an atomic medium with degenerate two-level transitions can modify spectra of applied cw resonant radiation at the sub-mW power level. The use of mutually coherent optical fields and heterodyne detection schemes allows spectral resolution at a kHz level, well below the laser linewidth. We find that ground-state Zeeman coherence may facilitate nonlinear wave mixing, while coherent population oscillations are responsible for phase and amplitude modulation of the applied fields. Conditions for the generation of new optical fields by nonlinear wave mixing in degenerate two-level atomic media are formulated.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Atom Optics and Ultrafast Spectroscopy
- Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 44, no. 17 (Sep 2011), paper no. 175502
- Publication year
- FOR Code(s)
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics; 0205 Optical Physics
- Atomic and molecular physics; Optics; Quantum optics and lasers
- Institute of Physics Publishing
- Publisher URL
- Copyright © 2011 IOP Publishing Ltd. The accepted manuscript is reproduced in accordance with the copyright policy of the publisher.
- Full text
- Peer reviewed