Direkt zum InhaltDirekt zur SucheDirekt zur Navigation
▼ Zielgruppen ▼

Humboldt-Universität zu Berlin - Mathematisch-Naturwissen­schaft­liche Fakultät - Nanooptik

Oliver Benson (2010)

Entangled Photons from a Light-Emitting Diode

ChemPhysChem, 11(16):3395–3397.

Current sources for entangled photon pairs rely mostly on spontaneous parametric down-conversion in nonlinear optical crystals. Such sources have the drawback of producing pairs randomly and require powerful optical pump lasers. C. L. Salter et al. have now developed a new source that generates entangled photon pairs on demand under electrical excitation. The device is similar to a classical light-emitting diode (see picture). Its robust and integrated design makes it suitable for applications in quantum information processing.