Triggered Single Photons from a Quantum Dot

Charles Santori, Matthew Pelton, Glenn Solomon, Yseulte Dale, Yoshihisa Yamamoto
2001 Physical Review Letters  
We demonstrate a new method for generating triggered single photons. After a laser pulse generates excitons inside of a single quantum dot, electrostatic interactions between them and the resulting spectral shifts allow a single emitted photon to be isolated. Autocorrelation measurements show a reduction of the two-photon probability to 0.12 times the value for Poisson light. Strong anti-bunching persists when the emission is saturated. The emitted photons are also polarized.
doi:10.1103/physrevlett.86.1502 pmid:11290178 fatcat:yzky57oclnbbjpjy6iwvm35nba