Phys. Rev. A 80, 041805(R) (2009) [4 pages]Electromagnetically induced transparency with noisy lasers
We demonstrate and characterize two coherent phenomena that can mitigate the effects of laser phase noise for electromagnetically induced transparency (EIT): a laser-power-broadening-resistant resonance in the transmitted intensity cross correlation between EIT optical fields, and a resonant suppression of the conversion of laser phase noise to intensity noise when one-photon noise dominates over two-photon-detuning noise. Our experimental observations are in good agreement with both an intuitive physical picture and numerical calculations. The results have wide-ranging applications to spectroscopy, atomic clocks, and magnetometers. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.80.041805
DOI:
10.1103/PhysRevA.80.041805
PACS:
42.50.Gy, 32.70.Jz, 42.50.Md
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