Line Plot from Scientific Research

Hysteresis of lasing: the frequency of the dressed cavity and emitted light for different scan directions of the bare cavity frequency f c show a strong hysteresis with a large difference between zone transitions. When adiabatically changing the detuning f c , the transition between zones occurs later since only a small change in atom number is necessary. The dressed cavity frequency is measured only after the excited-state population has decayed, leading to a frequency offset compared with the frequency during lasing. From this offset, the excited-state population during lasing can be inferred. Errors (s.d.) are included in the size of the markers.

DOI