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arXiv · 0912.2153

Tunable photon-assisted bleaching of three-level systems for noise filtration

Chun-Hsu Su·Andrew D. Greentree·Raymond G. Beausoleil·Lloyd C. L. Hollenberg·William J. Munro·Kae Nemoto·Timothy P. Spiller
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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.

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Chun-Hsu Su, Andrew D. Greentree, Raymond G. Beausoleil, Lloyd C. L. Hollenberg, William J. Munro, Kae Nemoto, Timothy P. Spiller. 2011-02-01. Tunable photon-assisted bleaching of three-level systems for noise filtration. https://arxiv.org/abs/0912.2153

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