- Title
- Radiative and nonradiative decay rates in chromium-related centers in nanodiamonds
- Creator
- Castelletto, Stefania; Boretti, Alberto
- Date
- 2011
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/33255
- Identifier
- vital:5242
- Identifier
-
https://doi.org/10.1364/OL.36.004224
- Identifier
- ISSN:0146-9592
- Abstract
- We address for the first time the measurement of nonradiative decay rates in Cr-related centers in nanodiamonds. Compared to our previous quantum efficiency measurement of Cr centers created in bulk diamond, separate measurements of radiative and nonradiative decay rates in grown nanodiamonds prove more challenging due to size dependence effects. We demonstrate in this Letter that, using defocused dipole imaging and collection efficiency calculation via finite-difference time-domain (FDTD), a quantum efficiency up to 0.9 can be inferred to Cr-related centers showing a 2-level system photon statistics.
- Relation
- Optics Letters Vol. 36, no. 21 (2011), p. 4224-4226
- Rights
- © 2011 Optical Society of America
- Rights
- This metadata is freely available under a CCO license
- Subject
- 0205 Optical Physics; 0206 Quantum Physics; 0906 Electrical and Electronic Engineering
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