title: Bright and photostable nitrogen-vacancy fluorescence from unprocessed detonation nanodiamond.
abstract: Bright and photostable fluorescence from nitrogen-vacancy (NV) centers is demonstrated in unprocessed detonation nanodiamond particle aggregates. The optical properties of these particles is analyzed using confocal fluorescence microscopy and spectroscopy, time resolved fluorescence decay measurements, and optically detected magnetic resonance experiments. Two particle populations with distinct optical properties are identified and compared to high-pressure high-temperature (HPHT) fluorescent nanodiamonds. We find that the brightness of one detonation nanodiamond particle population is on the same order as that of highly processed fluorescent 100 nm HPHT nanodiamonds. Our results may open the path to a simple and up-scalable route for the production of fluorescent NV nanodiamonds for use in bioimaging applications.
authors.affiliation: ARC Centre of Excellence for Nanoscale BioPhotonics & School of Science, RMIT University, Melbourne, VIC 3001, Australia. philipp.reineck@rmit.edu.au brant.gibson@rmit.edu.au.
authors.forename: P
authors.identifier: http://orcid.org/0000-0003-1549-937X
authors.initials: P
authors.lastname: Reineck
authors.affiliation: ARC Centre of Excellence for Nanoscale BioPhotonics & School of Science, RMIT University, Melbourne, VIC 3001, Australia. philipp.reineck@rmit.edu.au brant.gibson@rmit.edu.au.
authors.forename: M
authors.initials: M
authors.lastname: Capelli
authors.affiliation: ARC Centre of Excellence for Nanoscale BioPhotonics & School of Science, RMIT University, Melbourne, VIC 3001, Australia. philipp.reineck@rmit.edu.au brant.gibson@rmit.edu.au.
authors.forename: D W M
authors.initials: DW
authors.lastname: Lau
authors.affiliation: School of Science, RMIT University, Melbourne, VIC 3001, Australia.
authors.forename: J
authors.initials: J
authors.lastname: Jeske
authors.affiliation: RMIT Microscopy and Microanalysis Facility (RMMF), RMIT University, Melbourne, Victoria 3001, Australia.
authors.forename: M R
authors.initials: MR
authors.lastname: Field
authors.affiliation: National Institutes for Quantum and Radiological Science and Technology, Takasaki, Gunma 370-1292, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Ohshima
authors.affiliation: ARC Centre of Excellence for Nanoscale BioPhotonics & School of Science, RMIT University, Melbourne, VIC 3001, Australia. philipp.reineck@rmit.edu.au brant.gibson@rmit.edu.au.
authors.forename: A D
authors.initials: AD
authors.lastname: Greentree
authors.affiliation: ARC Centre of Excellence for Nanoscale BioPhotonics & School of Science, RMIT University, Melbourne, VIC 3001, Australia. philipp.reineck@rmit.edu.au brant.gibson@rmit.edu.au.
authors.forename: B C
authors.initials: BC
authors.lastname: Gibson