Frequency control of single quantum emitters in integrated photonic circuits

Autor: Schmidgall, Emma R., Chakravarthi, Srivatsa, Gould, Michael, Christen, Ian R., Hestroffer, Karine, Hatami, Fariba, Fu, Kai-Mei C.
Rok vydání: 2018
Předmět:
Zdroj: Nano Lett. 18, 1175 (2018)
Druh dokumentu: Working Paper
DOI: 10.1021/acs.nanolett.7b04717
Popis: Generating entangled graph states of qubits requires high entanglement rates, with efficient detection of multiple indistinguishable photons from separate qubits. Integrating defect-based qubits into photonic devices results in an enhanced photon collection efficiency, however, typically at the cost of a reduced defect emission energy homogeneity. Here, we demonstrate that the reduction in defect homogeneity in an integrated device can be partially offset by electric field tuning. Using photonic device-coupled implanted nitrogen vacancy (NV) centers in a GaP-on-diamond platform, we demonstrate large field-dependent tuning ranges and partial stabilization of defect emission energies. These results address some of the challenges of chip-scale entanglement generation.
Databáze: arXiv