TY - GEN
T1 - Interacting double dark resonances in a tripod system of room-temperature 4He
AU - Kumar, S.
AU - Lauprêtre, T.
AU - Proux, C.
AU - Bretenaker, F.
AU - Ghosh, R.
AU - Goldfarb, F.
PY - 2011
Y1 - 2011
N2 - We experimentally study two different tripod configurations using meta stable 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.
AB - We experimentally study two different tripod configurations using meta stable 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.
KW - Four-level tripod system
KW - Induced transparency
KW - Interacting double dark resonances
KW - Metastable helium
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U2 - 10.1117/12.897791
DO - 10.1117/12.897791
M3 - Conference contribution
AN - SCOPUS:80052566093
SN - 9780819488008
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Photonics 2010
T2 - Photonics 2010: 10th International Conference on Fiber Optics and Photonics
Y2 - 11 December 2010 through 15 December 2010
ER -