Nitrogen-vacancy nanodiamond based local thermometry using frequency-jump modulation
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2019-11-21 |
| Journal | Nanotechnology |
| Authors | Shashi K. R. Singam, MiloÅ” NeslĆ”dek, E. Goovaerts |
| Institutions | University of Antwerp, Hasselt University |
| Citations | 21 |
Abstract
Section titled āAbstractāA straightforward and sensitive approach is presented for contact-free thermal sensing with high spatial resolution based on optically detected magnetic resonance (ODMR) of negatively charged nitrogen-vacancy (NV) centers in fluorescent nanodiamonds. The frequency-jump procedure is a frequency modulation technique between two discrete frequencies at the inflection points at both sides of the NV ODMR resonance, which yields a signal proportional to the temperature shift over a wide temperature range. The approach is generic and is demonstrated by time-dependent measurements of the local temperature at different spots on a microelectronics circuit under electrical switching operation of one of the devices.