English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Dark state photophysics of nitrogen–vacancy centres in diamond.

Han, K. Y., Wildanger, D., Rittweger, E., Meijer, J., Pezzagna, S., Hell, S. W., et al. (2012). Dark state photophysics of nitrogen–vacancy centres in diamond. New Journal of Physics, 14: 123002. doi:10.1088/1367-2630/14/12/123002.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-8E8D-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-C747-1
Genre: Journal Article

Files

show Files
hide Files
:
1586687.pdf (Publisher version), 3MB
Name:
1586687.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Creators

show
hide
 Creators:
Han, K. Y.1, Author              
Wildanger, D.1, Author              
Rittweger, E.1, Author              
Meijer, J., Author
Pezzagna, S., Author
Hell, S. W.1, Author              
Eggeling, C.1, Author              
Affiliations:
1Department of NanoBiophotonics, MPI for biophysical chemistry, Max Planck Society, ou_578627              

Content

show
hide
Free keywords: -
 Abstract: Nitrogen–vacancy (NV) colour centres in diamond are attractive fluorescence emitters owing to their unprecedented photostability and superior applicability to spin manipulation and sub-diffraction far-field optical microscopy. However, some applications are limited by the co-occurrence of dark state population and optical excitation. In this paper, we use fluorescence microscopy and correlation spectroscopy on single negatively charged NV centres in type IIa bulk diamond to unravel the population kinetics of a >100 s long-lived dark state. The bright–dark state interconversion rates show a quadratic dependence on the applied laser intensity, which implies that higher excited states are involved. Depopulation of the dark state becomes less effective at wavelengths above 532 nm, resulting in a complete fluorescence switch-off at wavelengths >600 nm. This switch is reversible by the addition of shorter wavelengths. This behaviour can be explained by a model consisting of three dark and three bright states of different excitation levels, with the most efficient interconversion via the respective higher excited states. This model accounts for the nonlinear dark state and photoswitching kinetics, as well as for the decrease of the NV's fluorescence lifetime with excitation intensity and the strong dependence of fluorescence emission on excitation intensity. Unfortunately, our data do not give enough insight to allow us to assign the different states to specific electronic states known from the literature. Nevertheless, our observations allowed us to improve the recording of fluorescence images of single NV centres with sub-diffraction spatial resolution but they also have important implications for studying their spin states.

Details

show
hide
Language(s): eng - English
 Dates: 2012-12-04
 Publication Status: Published online
 Pages: 19
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1088/1367-2630/14/12/123002
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: New Journal of Physics
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 14 Sequence Number: 123002 Start / End Page: - Identifier: -