Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/78451
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Type: Conference paper
Title: Sensitive detection of NaYF₄: Yb/Tm nanoparticles using suspended core microstructured optical fibers
Other Titles: Sensitive detection of NaYF(4): Yb/Tm nanoparticles using suspended core microstructured optical fibers
Author: Schartner, E.
Jin, D.
Zhao, J.
Monro, T.
Citation: SPIE Proceedings, 2013; 8595: 85950X
Publisher: SPIE
Publisher Place: Online
Issue Date: 2013
Series/Report no.: Proceedings of SPIE
ISBN: 9780819493644
ISSN: 0277-786X
1996-756X
Conference Name: Photonics West, BIOS (2013 : San Francisco, California)
Editor: Parak, W.J.
Osinski, M.
Yamamoto, K.
Statement of
Responsibility: 
Erik P. Schartner, Dayong Jin, Jiangbo Zhao, Tanya M. Monro
Abstract: Rare-earth doped upconversion nanocrystals are emerging as the next-generation luminescent biomaterials. Here we load NaYF4: Yb/Er and NaYF4: Yb/Tm upconversion nanocrystals into a soft-glass suspended-core optical fiber dip sensor, allowing sensitive measurements and power-dependent characterizations to be performed. This, in combination with negligible background autofluorescence from the glass fiber when using infrared excitation has provided a significant improvement in terms of sensitivity over what has previously been demonstrated using an optical fiber dip sensor. For detection we employ suspended-core optical fibers, which have found extensive use in sensing applications. These combine the high evanescent overlap comparable to that of a nanowire, with the robust handling characteristics and long interaction length of a conventional fiber. The fiber sensor platform allows measurements to be performed using minimal sample volumes (<20 nL) while still maintaining the sensitivity of the platform. © 2013 Copyright SPIE.
Keywords: Nanocrystals
optical fiber
rare earth
thulium
erbium
microstructured optical fiber
nanoparticle
lanthanide
nanocrystals optical fiber rare earth thulium erbium microstructured optical fiber nanoparticle lanthanide lanthanide-doped nanocrystals
Description: Also cited as a book chapter: Colloidal Nanocrystals for Biomedical Applications VIII / W. J. Parak, M. Osinski, K. Yamamoto (eds.): 85950X
Rights: © 2013 SPIE
DOI: 10.1117/12.2004236
Grant ID: ARC
Appears in Collections:Aurora harvest
IPAS publications

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