Interacting double dark resonances in a tripod system of room-temperature 4He

S. Kumar; T. Lauprêtre; C. Proux; F. Bretenaker; R. Ghosh; F. Goldfarb

doi:10.1117/12.897791

23 August 2011 Interacting double dark resonances in a tripod system of room-temperature ⁴He

S. Kumar, T. Lauprêtre, C. Proux, F. Bretenaker, R. Ghosh, F. Goldfarb

Proceedings Volume 8173, Photonics 2010: Tenth International Conference on Fiber Optics and Photonics; 81730L (2011) https://doi.org/10.1117/12.897791
Event: International Conference on Fiber Optics and Photonics, 2010, Guwahati, India

Abstract

We experimentally study two different tripod configurations using metastable ⁴He, with the probe perpendicular and parallel to the quantization axis, defined by an applied weak magnetic field. In the first case, the two dark resonances interact incoherently and merge together into a single transparency peak with increasing coupling power. In the second case, we observe destructively interfering double dark resonances leading to a narrow absorption dip at the line center. We confirm the results theoretically.

Citation Download Citation

S. Kumar, T. Lauprêtre, C. Proux, F. Bretenaker, R. Ghosh, and F. Goldfarb "Interacting double dark resonances in a tripod system of room-temperature ⁴He", Proc. SPIE 8173, Photonics 2010: Tenth International Conference on Fiber Optics and Photonics, 81730L (23 August 2011); https://doi.org/10.1117/12.897791

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