5 papers
Quartet state of the neutral nitrogen-vacancy center in diamond and optimized spin readout under near-infrared two-photon excitation
Nikoletta Jegenyes, Pál Maák, Vladimir Verkhovlyuk +4
Photoionization of the excited nitrogen-vacancy center (NV-) in diamond leaves the neutral defect in a metastable quartet state of unknown energy. Using two-photon optically detect…
Solution-phase fluorination of nanodiamond: near-surface NV activation and spin relaxation
Szabolcs Czene, Olga Krafcsik, Nikoletta Jegenyés +4
Nanodiamonds hosting luminescent point defects, known as fluorescent nanodiamonds (FND), are a leading platform for quantum technology. The nitrogen-vacancy (NV) centre is the most…
Quantum Relaxometry Under Continuous Wave Excitation
Vladimir Verkhovlyuk, Chayma Bouchair, Oleg A. Anisimov +2
Quantum relaxometry is one of the most successful applications of nitrogen-vacancy (NV) centers in diamond and, more broadly, solid-state spin qubits, enabling ultrasensitive detec…
Materials and Spin Characteristics of Nanodiamonds Partially Covered with Amino Groups and Embedded with Nitrogen-Vacancy Color Centers
Nikoletta Jegenyes, Vladimir Verkhovlyuk, Szabolcs Czene +5
Fluorescent nanodiamonds (FNDs) with optically read qubits hold great potential for detecting electric and magnetic fields, temperature, and other nanoscale physicochemical quantit…
A Coherence-Protection Scheme for Quantum Sensors Based on Ultra-Shallow Single Nitrogen-Vacancy Centers in Diamond
Anton Pershin, András Tárkányi, Vladimir Verkhovlyuk +2
Recent advances in the engineering of diamond surfaces make it possible to stabilize the charge state of 7-30 nanometers deep nitrogen-vacancy (NV) quantum sensors in diamond and t…