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Single-photon emitters (SPEs) in two-dimensional materials are highly promising candidates for quantum technologies. SPEs in hexagonal boron nitride (hBN) have been widely investigated, but mostly in exfoliated or powder samples that…

Quantum theory is the foundation of modern physics. Some of its basic principles, such as Born's rule, however, are based on postulates which require experimental testing. Any deviation from Born's rule would result in higher-order…

Quantum Physics · Physics 2021-04-01 Tobias Vogl , Heiko Knopf , Maximilian Weissflog , Ping Koy Lam , Falk Eilenberger

Color centers in hexagonal boron nitride (hBN) advantageously combine excellent photophysical properties with a potential for integration in highly compact devices. Progress towards scalable integration necessitates a high quantum…

Sources of pure and indistinguishable single-photons are critical for near-future optical quantum technologies. Recently, color centers hosted by two-dimensional hexagonal boron nitride (hBN) have emerged as a promising platform for high…

Quantum Physics · Physics 2019-08-22 Tobias Vogl , Ruvi Lecamwasam , Ben C. Buchler , Yuerui Lu , Ping Koy Lam

Defect-based quantum emitters in hexagonal boron nitride (hBN) are promising building blocks for scalable quantum photonics due to their stable single-photon emission at room temperature. However, enhancing their emission intensity and…

Mechanically isolated defect centers in hexagonal boron nitride are promising coherent quantum emitters, yet spectral instabilities persist, and their spin-related nature remains unclear. Here we investigate a single mechanically isolated…

Quantum Physics · Physics 2026-04-20 Sajedeh Shahbazi , Alexander Pachl , Kathrin Schwer , Patrick Maier , Alexander Kubanek

Single photon emitters in hexagonal boron nitride are based on fluorescent point-like defects. These defects typically have exceptional photophysical properties and therefore been the focus of extensive research due to their potential to…

Hexagonal boron nitride (hBN)-long-known as a thermally stable ceramic-is now available as atomically smooth, single-crystalline flakes, revolutionizing its use in optoelectronics. For nanophotonics, these flakes offer strong…

Hexagonal boron nitride (hBN) is a layered dielectric material with a wide range of applications in optics and photonics. In this work, we demonstrate a fabrication method for few-layer hBN flakes with areas up to 5000 $\rm \mu m$. We show…

Forming single-photon emitters (SPEs) in insulating hexagonal boron nitride (hBN) has sparked wide interests in the quantum photonics. Despite significant progress, it remains challenging to deterministically create SPEs at precise…

Hexagonal boron nitride (h-BN) hosts pure single-photon emitters that have shown evidence of optically detected electronic spin dynamics. However, the electrical and chemical structure of these optically addressable spins is unknown, and…

Hexagonal boron nitride (hBN) is a wide band gap material with both strong excitonic light emission in the ultraviolet and strong exciton-phonon coupling. Luminescence experiments performed on the recently synthesized monolayer form (m-hBN)…

Materials Science · Physics 2023-02-28 Pierre Lechifflart , Fulvio Paleari , Davide Sangalli , Claudio Attaccalite

Optically addressable spins associated with defects in wide-bandgap semiconductors are versatile platforms for quantum information processing and nanoscale sensing, where spin-dependent inter-system crossing (ISC) transitions facilitate…

Quantum Physics · Physics 2019-07-23 Annemarie L. Exarhos , David A. Hopper , Raj N. Patel , Marcus W. Doherty , Lee C. Bassett

Point defects in solid-state quantum systems are vital for enabling single-photon emission at specific wavelengths, making their precise identification essential for advancing applications in quantum technologies. However, pinpointing the…

Materials Science · Physics 2025-03-03 Chanaprom Cholsuk , Asli Cakan , Volker Deckert , Sujin Suwanna , Tobias Vogl

Controlling and manipulating individual quantum systems in solids underpins the growing interest in development of scalable quantum technologies. Recently, hexagonal boron nitride has garnered significant attention in quantum photonic…

Color centers in hexagonal boron nitride (hBN) have attracted considerable attention due to their remarkable optical properties enabling robust room temperature photonics and quantum optics applications in the visible spectral range. On the…

Materials Science · Physics 2025-03-17 Ádám Ganyecz , Rohit Babar , Zsolt Benedek , Igor Aharonovich , Gergely Barcza , Viktor Ivády

Hexagonal boron nitride (hBN) is an emerging layered material that plays a key role in a variety of two-dimensional devices, and has potential applications in nanophotonics and nanomechanics. Here, we demonstrate the first cavity…

Ultraviolet (UV) quantum emitters in hexagonal boron nitride (hBN) have generated considerable interest due to their outstanding optical response. Recent experiments have identified a carbon impurity as a possible source of UV single photon…

Quantum Physics · Physics 2021-11-19 Song Li , Anton Pershin , Gergő Thiering , Péter Udvarhelyi , Adam Gali

We demonstrate a post-fabrication method that deterministically integrates hexagonal boron nitride (hBN) single-photon emitters (SPEs) onto silicon nitride (SiN) waveguides. Mechanically exfoliated hBN flakes are dry-transferred onto…

Optics · Physics 2025-12-29 Daiki Yamashita , Masaki Yumoto , Aiko Narazaki , Makoto Okano

A robust process for fabricating intrinsic single-photon emitters in silicon nitride has been recently established. These emitters show promise for quantum applications due to room-temperature operation and monolithic integration with the…