Quantum Technologies within INFN: status and perspectives

Magnetic sensing with laser-synthesized nanodiamonds

Not scheduled

15m

Archivio Antico and DEI, Aula Magna (Padova - Università degli Studi, Palazzo del Bo')

Contribution from scientific community Contributions from the scientific community Session III

Speaker

Prof. Antonio Miotello (Dipartimento di Fisica, Università degli Studi di Trento, via Sommarive 14, 38123-Povo (TN) Italy )

Description

Nitrogen-vacancy (NV)-doped nanodiamonds (NDs) have applications in quantum-sensing of temperature and magnetic fields. We succeded in ns laser-synthesis,from graphite, of fluorescent NV-NDs w/o any post-process activation as opposed to current production techniques. Proof of NDs formation is given by SAED, SEM and Raman spectroscopy. NV centers are probed by spectrally-resolved Optically Detected Magnetic Resonance. A thermodynamic model was developed to explain NDs formation under ns laser ablation. Advanced room-T opto-magnetic sensing properties of our NDs are reported.
1. M. Cazzanelli, L. Basso, E. Moser, N. Bazzanella, and A. Miotello. Subm. Nanoletters (2019)
2. L. Basso, N. Bazzanella, M. Cazzanelli, and A. Miotello.Carbon 153, 148 (2019).
3. L. Basso, F. Gorrini, M. Cazzanelli, N. Bazzanella, A. Bifone, and A. Miotello, Nanoscale 10, 5738 (2018).
4. L. Basso, F. Gorrini, N. Bazzanella, M. Cazzanelli, C. Dorigoni, A. Bifone, and A. Miotello,Appl. Phys. A 124, 72 (2018).

Presentation materials

Abstract-Padova_-_Ridotto.pdf