Cover Feature: Sharp Diamond Needles for Single‐Photon Emission (Adv. Photonics Res. 2/2026)

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Authors: Mariam Maku Quarshie, Yaraslau Padrez, Priyadharshini Balasubramanian, Филоненко Елена Михайловна, Rizwan Sultan, Renata Karpicz, Alexander N. Obraztsov, Fedor Jelezko, Sergei Malykhin, P. Kuzhir
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Abstract

Single-Crystal Diamond Needles In their Research Article (10.1002/adpr.202500302), Sergei Malykhin, Polina Kuzhir, and co-workers investigate the morphological evolution of single-crystal diamond needles through oxidation in air at 650–700 °C. Electron microscopy reveals temperature- and time-dependent sharpening, length reduction, and surface changes. Measurements of the second-order correlation function show that optimized oxidation enables obtaining single nitrogen-vacancy centers at needle tips for single-photon probes.

Fields of Study & Subjects

Diamond and Carbon-based Materials Research Quantum optics and atomic interactions Advanced Fluorescence Microscopy Techniques

Publication details

Journal / source
Advanced Photonics Research
Volume
7
Issue
2
Publication date
1 February 2026
Language
EN