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…
cond-mat.mtrl-sci2024
Emission engineering in monolithically integrated silicon nitride microring resonators
Kishor Kumar Mandal, Anuj Kumar Singh, Brijesh Kumar +6
Monolithic integration of solid-state color centers with photonic elements of the same material is a promising approach to overcome the constraints of fabrication complexity and co…