Fig. 3: OODR probe transitions. | Nature Communications

Fig. 3: OODR probe transitions.

From: Sub-Doppler optical-optical double-resonance spectroscopy using a cavity-enhanced frequency comb probe

Fig. 3

Three probe transitions: a 3ν3 ← ν3 Q(3, F1), b ν1 + 4ν2 ← ν3 P(3, F1), and c ν2 + ν3 + ν4 ← ν3 R(3, F1), measured when the pump is locked to the ν3 R(2, F2) transition. Upper windows: data taken with parallel (red markers, 5 averages) and perpendicular (black markers, 5 averages) relative pump/probe polarizations together with fits of the cavity transmission function (solid curves). Lower windows: residuals of the fits. Line assignment—see text under Line assignments.

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