Two-photon imaging of a magneto-fluorescent indicator for 3D optical magnetometry
- Type
- Article
- Citation
- OPTICS EXPRESS, v.23, no.21, pp.28022 - 28030
- Issued Date
- 2015-10
- Abstract
- We developed an optical method to visualize the three-dimensional distribution of magnetic field strength around magnetic microstructures. We show that the two-photon-excited fluorescence of a chained donor-bridge-acceptor compound, phenanthrene-(CH2)(12)-O-(CH2)(2)-N, N-dimethylaniline, is sensitive to ambient magnetic field strength. A test structure is immersed in a solution of the magneto-fluorescent indicator and a custom two-photon microscope maps the fluorescence of this compound. The decay kinetics of the electronic excited state provide a measure of magnetic field that is insensitive to photobleaching, indicator concentration, or local variations in optical excitation or collection efficiency. (C) 2015 Optical Society of America
- Publisher
- OPTICAL SOC AMER
- ISSN
- 1094-4087
- Appears in Collections:
- Department of Chemistry > 1. Journal Articles
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