Tunable photon-assisted bleaching of three-level systems for noise filtration
arXiv:0912.2153
Abstract
Electromagnetically-induced transparency (EIT) exploits quantum coherence to burn subnatural linewidth holes within a spectral line. We investigate the less explored properties of EIT to effect absorptive nonlinear processes without restrictions on the relative intensities of pump and probe fields. We show that a three-level medium under imperfect EIT conditions can generate a form of bleaching that is qualitatively similar to two-state saturable absorption. This scheme has the advantages of greater sensitivity to signal intensity and controllability over its bleaching intensity level post-fabrication. Such effects could prove useful for noise filtration at very low light levels.
9 pages, 9 figures, significantly revised
References in corpus (4)
- The nitrogen-vacancy center in diamond re-visited
- Quantum Phase Gate Operation Based on Nonlinear Optics: Full Quantum Analysis
- Single photon quantum non-demolition in the presence of inhomogeneous broadening
- Sub-nanoscale Resolution for Atom Localization, Lithography and Microscopy via Coherent Population Trapping