Solid-state materials and devices for single-photon generation and more

Liao Zhang, Michio Ikezawa, Tatsuya Mori

Igor Aharonovich, Dirk Englund, Milos Toth

Je‐Hyung Kim, Shahriar Aghaeimeibodi, Christopher J. K. Richardson +3 more

Efficient generation and control of quantum light on a chip is very important to achieve scalable quantum photonic systems. Solid-state quantum emitters can generate single photons with high efficiency, while silicon photonic circuits can manipulate them in an integrated device structure. Combining these two material platforms, therefore, enable us to utilize the advantages of both systems and make feasible integrated quantum photonic devices. We demonstrate hybrid integration of solid-state quantum dots to a silicon photonic device by using a pick-and-place technique and perform Hanbury-Brown and Twiss experiments on the silicon chip with integrated quantum emitters.

Lorenzo De Santis, C. Antón, B. Reznychenko +10 more

Greta Andrini, Francesco Amanti, Fabrizio Armani +37 more

Single-photon sources are important for integrated photonics and quantum technologies, and can be used in quantum key distribution, quantum computing, and sensing. Color centers in the solid state are a promising candidate for the development of the next generation of single-photon sources integrated in quantum photonics devices. They are point defects in a crystal lattice that absorb and emit light at given wavelengths and can emit single photons with high efficiency. The landscape of color centers has changed abruptly in recent years, with the identification of a wider set of color centers and the emergence of new solid-state platforms for room-temperature single-photon generation. This review discusses the emerging material platforms hosting single-photon-emitting color centers, with an emphasis on their potential for the development of integrated optical circuits for quantum photonics.

Per Jönsson