Observation of the Unconventional Photon Blockade

We observe the unconventional photon blockade effect in quantum dot cavity QED, which, in contrast to the conventional photon blockade, operates in the weak coupling regime. A single quantum dot transition is simultaneously coupled to two orthogonally polarized optical cavity modes, and by careful tuning of the input and output state of polarization, the unconventional photon blockade effect is observed. We find a minimum second-order correlation g((2))(0) approximate to 0.37, which corresponds to g((2))(0) approximate to 0.005 when corrected for detector jitter, and observe the expected polarization dependency and photon bunching and antibunching; close by in parameter space, which indicates the abrupt change from phase to amplitude squeezing.

Published in:
Physical Review Letters, 121, 4, 043601
Jul 23 2018
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 Record created 2018-08-29, last modified 2018-12-03

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