Fig. 3: Experimental transmission signals (TSs) for different schemes.
From: Temporal analog of Fabry-Pérot resonator via coherent population trapping
a A Lorentz fitting of single-pulse CPT spectrum shows a full width at half maximum (FWHM) is 27 kHz. b Conventional CPT-Ramsey spectrum is obtained with an integration time of 0.5 ms. c–g Multi-pulse CPT-Ramsey spectra of N equidistant pulses with a length τ = 2 μs into the integration time of 0.5 ms.
