title: All-optical single-nanoparticle ratiometric thermometry with a noise floor of 0.3 K Hz(-1/2).
abstract: We demonstrate a temperature noise floor of 0.3 K Hz(-1/2) and a long-term stability better than 0.6 K (peak-to-peak value) using a single crystal of diamond smaller than 50 nm across and containing about 100 nitrogen-vacancy centres as a temperature sensor. We compare the achieved characteristics to other single-particle sensors and show that it is one of the best ratiometric all-optical nano-probes of temperature to date.
authors.affiliation: School of Mathematics and Physics, The University of Queensland, St Lucia, QLD 4072, Australia.
authors.forename: Taras
authors.initials: T
authors.lastname: Plakhotnik
authors.forename: Haroon
authors.initials: H
authors.lastname: Aman
authors.forename: Huan-Cheng
authors.initials: HC
authors.lastname: Chang