Photon Antibunching from Single-Walled Carbon Nanotubes at Room Temperature in the Telecom-Wavelength Range

Takumi Endo

Ying‐Zhong Ma, Matt W. Graham, Leonas Valkūnas +2 more

Michler, Imamoglu, Mason ' +3 more

A. Ishii, T. Uda, Y. K. Kato

Applications in nanophotonics and optical quantum information processing often require just one photon at a time. Although typical single-photon emitters rely on electronic states localized at the nanometer scale, the authors find that carbon nanotubes over 2 $\ensuremath{\mu}$m long exhibit photon antibunching at room temperature. Monte Carlo simulations and first-passage theory reveal that high-purity single-photon emission from this system is possible in principle, by means of efficient exciton-exciton annihilation. These results point to design strategies for single-photon sources, and provide important insight into excitonic processes in carbon nanotubes.

Zhao Mu, Abdullah Rasmita, Jianqun Yang +2 more

Abstract Building a quantum network is the ultimate goal of quantum information science. Among the candidates to realize quantum node, quantum repeater, and quantum channel, the solid‐state emitters are particularly outstanding because of the presence of the spin‐photon interface. Some of the solid‐state emitters such as carbon nanotubes, color centers, transition metal ions, and rare earth ions can give telecom wavelength emission at room temperature. These emitters have different origins of single‐photon emission. Here, the basic properties of each kind of emitter and their progress towards applications are reviewed. This review also introduces the current efforts to improve the emitters’ brightness by integrating them into nanostructures.

Svetlana G. Lukishova, Luke J. Bissell