Cross-Polarized Single Photon Emission from Single Semiconductor Quantum Dots with V-Type Level Driven by Pulse Field

Mu-Tian Cheng, Si Xiao, Shao‐Ding Liu +3 more

Liu Wen-Juan, Yaoyi Li

The statistic properties of photon emissions from single semiconductor quantum dots with V-type level driven by pulses are investigated theoretically Based on quantum regression theorem and master equations, the dynamic equations of the second-order correlation function of the photon emissions are deduced. The calculated results reveal that the efficiency of single photon emissions from two orthogonal polarization eigenstates (|x〉 and |y〉) reaches the maximum when the input pulses area is about π, and the probability of the cross-polarized single photon emission from |x〉 and |y〉 decreases with increasing of pulse width.

Yonggang Peng, Dongsheng Wang, Yujun Zheng +1 more

Y. Ben, Zhibiao Hao, Changzheng Sun +2 more

Mu-Tian Cheng, Si Xiao, Shao‐Ding Liu +3 more

We analyse the population dynamics and the photon emission statistics of a single semiconductor quantum dot with an exciton–biexciton–triexciton multilevel driven by a pulse field, in which the quantum regression theorem and optical Bloch equations are employed. The populations of the three states are comparable under resonant excitation with the input pulse area around 1.5π. Three second-order cross-correlation functions demonstrate the correlated three-photon emissions at a given order from triexciton, biexciton and exciton states driven by single pulses, while the probability of the bunched three-photon cascaded emissions decreases to the minimum as the input pulse area increases to 2π in every period.

Yonggang Peng, Yujun Zheng

Based on the generating function approach developed recently, the theoretical study of the photon emission statistics in single InGaAs∕GaAs quantum dots is presented. We show the X- and Y-polarized photon emission statistics, the joint probabilities and marginal probabilities of V-type three-level system in single quantum dots driven by single pulse and a pair of pulses, respectively. The first moment confirm known experimental results while the Mandel’s Q parameters results display complex behaviors.