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Localizing and Tracking Single Nanoscale Emitters in Three Dimensions with High Spatiotemporal Resolution Using a Double-Helix Point Spread Function

Open access
Thompson, Michael A., Lew, Matthew D., Badieirostami, Majid, Moerner, W. E.·2010·Nano Letters

Abstract

Three-dimensional nanoscale localization and tracking of dim single emitters can be obtained with a widefield fluorescence microscope exhibiting a double-helix point spread function (DH-PSF). We describe in detail how the localization precision quantitatively depends upon the number of photons detected and the z position of the nanoscale emitter, thereby showing a approximately 10 nm localization capability along x, y, and z in the limit of weak emitters. Experimental measurements are compared to Fisher information calculations of the ultimate localization precision inherent in the DH-PSF. The DH-PSF, for the first time, is used to track single quantum dots in aqueous solution and a quantum dot-labeled structure inside a living cell in three dimensions.

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Crossref · 10.1021/nl903295p

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Metadata

Authors
Thompson, M. A., Lew, M. D., Badieirostami, M., & Moerner, W. E.
Venue
Nano Letters
Published
2009-12-15
Volume
10
Issue
1
Pages
211-218
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2030396921
Cited by
184
References
1
FWCI
8.25
Type
journal article
Language
en
Open access
green

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