TY - JOUR
T1 - Sub-Doppler and sub-natural narrowing of an absorption line
AU - Gavra, N.
AU - Rosenbluh, M.
AU - Zigdon, T.
AU - Wilson-Gordon, A. D.
AU - Friedmann, H.
PY - 2007/12/15
Y1 - 2007/12/15
N2 - We experimentally demonstrate the double dark resonance windows characteristic of a four level tripod system such as the D2 line of 87Rb where the Fg = 1, mg = -1, 0, 1 Zeeman sublevels form the bottom three levels and the Fe = 0 state is the upper level. Between the double dark resonance windows, a very narrow absorption resonance is observed whose line-width is shown to be sub-Doppler and sub-natural. The sharp absorptive resonance is characterized as a function of applied magnetic field and pump laser power.
AB - We experimentally demonstrate the double dark resonance windows characteristic of a four level tripod system such as the D2 line of 87Rb where the Fg = 1, mg = -1, 0, 1 Zeeman sublevels form the bottom three levels and the Fe = 0 state is the upper level. Between the double dark resonance windows, a very narrow absorption resonance is observed whose line-width is shown to be sub-Doppler and sub-natural. The sharp absorptive resonance is characterized as a function of applied magnetic field and pump laser power.
KW - Atomic coherence
KW - Level crossing
KW - Optical pumping
UR - http://www.scopus.com/inward/record.url?scp=35449001603&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2007.08.012
DO - 10.1016/j.optcom.2007.08.012
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AN - SCOPUS:35449001603
SN - 0030-4018
VL - 280
SP - 374
EP - 378
JO - Optics Communications
JF - Optics Communications
IS - 2
ER -