High performance single photon sources from photolithographically defined pillar microcavities.
We demonstrate that single photons can be generated from single InAs/GaAs quantum dots in photolithographically defined pillar microcavities. Pillars with a 1.9 microm diameter cavity show a four fold enhancement in the radiative decay rate due to the Purcell effect and a photon collection efficiency into a lens of up to 10%. Measurements of the second order correlation function reveal a greater than fifty fold reduction in the multi-photon emission rate compared to a laser of the same intensity.
Bennett
A
A
Unitt
D
D
Atkinson
P
P
Ritchie
D
D
Shields
A
A