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Color centers in hexagonal boron nitride (hBN) have become an intensively researched system due to their potential applications in quantum technologies. There has been a large variety of defects being fabricated, yet, for many of them, the…

Quantum Physics · Physics 2024-08-02 Chanaprom Cholsuk , Ashkan Zand , Asli Cakan , Tobias Vogl

Color centers in h-BN are among the brightest emission centers known yet the origins of these emission centers are not well understood. Here, using first-principles calculations in combination with the generating function method, we…

Materials Science · Physics 2021-08-17 Christopher Linderälv , Witlef Wieczorek , Paul Erhart

The emerging interest in van der Waals heterostructures as new materials for opto-electronics and photonics poses questions about their stability and structure-property relations. In the framework of density-functional and many-body…

Color centers in hexagonal boron nitride (hBN) emerge as promising quantum light sources at room temperature, with potential applications in quantum communications, among others. The temporal coherence of emitted photons (i.e. their…

Hexagonal boron nitride (hBN) is gaining interest for potential applications in integrated quantum nanophotonics. Yet, to establish hBN as an integrated photonic platform several cornerstones must be established, including the integration…

Applied Physics · Physics 2021-07-29 Chi Li , Johannes E. Fröch , Milad Nonahal , Thinh N. Tran , Milos Toth , Sejeong Kim , Igor Aharonovich

Wurtzite boron nitride (wBN) is a polymorph of boron nitride and serves as an intermediate phase in the transition from hBN to cBN under high pressure and temperature conditions. Owing to these extreme synthesis conditions, wBN likely…

Materials Science · Physics 2025-06-27 M. Silvetti , M. Pouyot , E. Cannuccia

Artificial atomic systems in solids such as single photon emitters are becoming increasingly important building blocks in quantum information processing and scalable quantum nanophotonic networks. Here, we report on a controllable way to…

Integrated quantum photonics, with potential applications in quantum information processing, relies on the integration of quantum emitters into on-chip photonic circuits. Hexagonal boron nitride (hBN) is recognized as a material that is…

Single-photon emitters (SPE) in hexagonal boron nitride (h-BN) are promising for applications ranging from single-photon sources to quantum sensors. Previous studies exclusively focused on the generation and characterization of SPEs in…

Mesoscale and Nanoscale Physics · Physics 2025-07-04 Le Liu , Igor Khanonkin , Johannes Eberle , Bernhard Rizek , Stefan Fält , Kenji Watanabe , Takashi Taniguchi , Ataç Imamoğlu , Martin Kroner

Two-dimensional (2D) transition metal dichalcogenides (TMDCs) are the subject of intense investigation for applications in optics, electronics, catalysis, and energy storage. Their optical and electronic properties can be significantly…

Hexagonal boron nitride is widely used as a substrate for two-dimensional materials in both electronic and photonic devices. Here, we demonstrate that two-dimensional hexagonal boron nitride is also an ideal substrate for one-dimensional…

Mesoscale and Nanoscale Physics · Physics 2021-01-01 N. Fang , K. Otsuka , A. Ishii , T. Taniguchi , K. Watanabe , K. Nagashio , Y. K. Kato

Artificial atomic systems in solids are becoming increasingly important building blocks in quantum information processing and scalable quantum nanophotonic networks. Yet, synthesis of color centers that act as single photon emitters which…

Hexagonal boron nitride (h-BN) is a critical material for 2D electronic devices for graphene and has attracted a considerable amount of attention owing to its structural similarity and semiconducting property. However, modifying its…

Applied Physics · Physics 2019-11-12 Jerome A. Cuenca , Soumen Mandal , Malcolm Snowball , Adrian Porch , Oliver A. Williams

Single photon emitters (SPEs) in solids have emerged as promising candidates for quantum photonic sensing, communications, and computing. Defects in hexagonal boron nitride (hBN) exhibit high-brightness, room-temperature quantum emission,…

Hexagonal boron nitride (hBN) has recently gained a strong interest as a strategic component in engineering van der Waals heterostructures built with two dimensional crystals such as graphene. This work reports micro-Raman measurements on…

Materials Science · Physics 2017-05-04 I Stenger , A Schué , A Boukhicha , B Berini , A Plaçais , A Loiseau , J Barjon

Negatively charged boron vacancy ($\mathrm{V_B^-}$) in hexagonal boron nitride (hBN) is the most extensively studied room-temperature quantum spin system in two-dimensional (2D) materials. Nevertheless, the current effective readout of…

Two-dimensional hexagonal boron nitride (hBN) that hosts bright room-temperature single-photon emitters (SPEs) is a promising material platform for quantum information applications. An important step towards the practical application of hBN…

The electrical evaluation of the crystallinity of hexagonal boron nitride (h-BN) is still limited to the measurement of dielectric breakdown strength, in spite of its importance as the substrate for 2-dimensional van der Waals…

Materials Science · Physics 2018-01-29 Y. Hattori , T. Taniguchi , K. Watanabe , K. Nagashio

We perform photoluminescence measurements on vacancy-related emitters in hexagonal boron nitride (hBN) that are notorious for their low quantum yields. The gating of these emitters via few-layer graphene electrodes reveals a reproducible,…

Quantum enhanced sensing exploits the coherent dynamics of two-level systems (TLSs) to achieve exceptional sensitivities and measurement precision that surpass classical detection limits. While platforms such as nitrogen vacancy centers in…

Optics · Physics 2025-08-04 XiaoJie Wang , YangYi Chen , Hong-Hua Fang