Photonics with hexagonal boron nitride Auteur(s): Caldwell Joshua David, Aharonovich Igor, Cassabois G., Edgar James H., Gil B., Basov D.N. (Article) Publié: Nature Reviews Materials, vol. 8 p.1 (2019) Ref HAL: hal-02191041_v1 DOI: 10.1038/s41578-019-0124-1 WoS: 000478802800006 Exporter : BibTex | endNote 71 Citations Résumé: For more than seven decades, hexagonal boron nitride (hBN) has been employed asan inert, thermally stable engineering ceramic; since 2010, it has also been used as the optimal substrate for graphene in nanoelectronic and optoelectronic devices. Recent research has revealed that hBN exhibits a unique combination of optical properties that enable novel (nano) photonic functionalities. Specifically, hBN is a natural hyperbolic material in the mid-IR range,in which photonic material options are sparse. Furthermore, hBN hosts defects that can be engineered to obtain room-temperature, single-photon emission; exhibits strong second-order nonlinearities with broad implications for practical devices; and is a wide-bandgap semiconductor well suited for deep UV emitters and detectors. Inspired by these promising attributes, research on the properties of hBN and the development of large-area bulk and thin-film growth techniques has dramatically expanded. This Review offers a snapshot of current research exploring the properties underlying the use of hBN for future photonics functionalities and potential applications, and covers some of the remaining obstacles. |