Towards high-cooperativity strong coupling of a quantum dot in a tunable microcavity
Lukas Greuter, Sebastian Starosielec, Andreas V. Kuhlmann, Richard J. Warburton
2015
Physical Review B
We investigate the strong coupling regime of a self-assembled quantum dot in a tunable microcavity with dark-field laser spectroscopy. The high quality of the spectra allows the lineshapes to be analyzed revealing subtle quantum interferences. Agreement with a model calculation is achieved only by including exciton dephasing which reduces the cooperativity from a bare value of 9.0 to the time-averaged value 5.5. In the pursuit of high cooperativity, besides a high-Q and low mode-volume cavity,
more »
... e demonstrate that equal efforts need to be taken towards lifetime-limited emitter linewidths.
doi:10.1103/physrevb.92.045302
fatcat:2u6tizebnnbqhc3akztj24vb74