3 papers
physics.optics2026
Deterministic single-photon sources in hexagonal boron nitride with electron-dose-tuned purity and reversible thermal quenching
Amrita Majumder, Janhavi Khunte, Ikshvaku Shyam +2
Electron-beam irradiation is an established route to create site-controlled, room-temperature single-photon emitters (SPEs) in hexagonal boron nitride (hBN), but two aspects remain…
physics.optics2026
Hexagonal Boron Nitride Spin Defects for Quantum Photonics: Annealing-Free Generation by Krypton Ion Implantation
Ikshvaku Shyam, Raj Singh, Mangababu Akkanaboina +11
Controlled, reproducible generation of luminescent defect centres in hBN remains a key challenge for scalable quantum-photonic technologies. Here, we report Kr ion implantati…
physics.optics2026
Deterministic Single-Photon Emitter Arrays in Hexagonal Boron Nitride by Carbon-Assisted Focused Ion Beam Engineering
Mangababu Akkanaboina, Rohit Kumar, Brijesh Kumar +4
The realization of on-chip photonic circuits requires scalable and deterministic single-photon emitters (SPEs) at room temperature, which remain a challenge in van der Waals materi…