Quantum-Dot-Based Photon Emission and Media Conversion for Quantum Information Applications

Figure 11

Second-order photon correlation function g⁽²⁾(𝜏) of single InAs QD embedded in Niobium metal. Blue line is a fitting result with a function g⁽²⁾(𝜏)=1−Aexp(−B|𝜏|). Resultant g⁽²⁾(0) is as low as 0.040±0.04, and the time constant B=2.17 (ns). This indicates that highly suppressed multiphoton emission is possible with the LO-phonon resonant excitation.