Extended Data Fig. 6: Atom Measurements Using the ISCL.
From: Optical atomic clock interrogation using an integrated spiral cavity laser
a, Narrow spectroscopy using Rabi pulses was performed with the atom and the ISCL. A 2.5 ms probe pulse is used, increasing the dead time of the clock and requiring greater performance. The observed linewidth of 380 Hz is Fourier limited by the interrogation time. The scan is performed with 400 trials per point and was obtained in ∼2 minutes. b, Rabi oscillation spectroscopy performed with the ISCL. The fit demonstrates π-pulse time of 11 μs, with the observed decoherence due to the thermal state of the ion corresponding to mean axial mode occupation \(\bar{n}\approx 19.5\).
