Pulse-enhanced two-photon interference with solid state quantum emitters

Solid-state single-photon emitters

631 Photonic technologies are becoming increasingly prevalent in our daily lives. After decades of rapid advances, light sources — especially lasers and light-emitting diodes — have become high-performance, yet low-cost and reliable components, driving the Internet and lighting cities. A new frontier of research is the development of non-classical light sources: sources that produce streams of ...

Multi-photon processes in solid-state quantum emitters

In order to stimulate these systems into emitting photons, lasers are used to excite them to high-level excited states. These states relax, and in doing so release photons. This is called quasi-resonant excitation. The problem with this quasi-resonant excitation procedure is that it also excites the semiconductor solid-state environment surrounding the quantum dot. This can couple to the quantu...

Phonon-Assisted Two-Photon Interference from Remote Quantum Emitters

Photonic quantum technologies are on the verge of finding applications in everyday life with quantum cryptography and quantum simulators on the horizon. Extensive research has been carried out to identify suitable quantum emitters and single epitaxial quantum dots have emerged as near-optimal sources of bright, on-demand, highly indistinguishable single photons and entangled photon-pairs. In or...

Fully tuneable, Purcell-enhanced solid-state quantum emitters

Two-photon interference of weak coherent laser pulses recalled from separate solid-state quantum memories.

Quantum memories allowing reversible transfer of quantum states between light and matter are central to quantum repeaters, quantum networks and linear optics quantum computing. Significant progress regarding the faithful transfer of quantum information has been reported in recent years. However, none of these demonstrations confirm that the re-emitted photons remain suitable for two-photon inte...