We demonstrate a symmetric, single-spatial mode, single-photon heralding efficiency of 84% for a type-II spontaneous parametric downconversion process. This achievement of high efficiency, single-spatial mode collection is key to enabling many quantum information processing and quantum metrology applications.
Citation: Optics Letters
Pub Type: Journals
single photon, quantum information, single mode, photon, heralding efficiency, entanglement, quantum mechanics