Tapered Mach-Zehnder interferometer based on PbS quantum dots modified by polymers for copper ion sensing

Yuyang Yan; Meiduan Fan; Shuang Zhou; Xiaolan Sun; Longfei Ma; Ruoyu Li; Alan R. Kost

doi:10.1364/AO.425453

Tapered Mach-Zehnder interferometer based on PbS quantum dots modified by polymers for copper ion sensing

Yuyang Yan, Meiduan Fan, Shuang Zhou, Xiaolan Sun, Longfei Ma, Ruoyu Li, Alan R. Kost

Optical Sciences

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

An optical fiber interferometer coated with PbS quantum dots (QDs) was developed for copper ion (Cu2+) detection. The QDs were modified by a multifunctional copolymer that enabled QD surface ligation, dispersion, and coordination withCu2+.Cu2+ coordination with the polymer induced changes in the surrounding refractive index of the interferometer. The sensor was highly selective for Cu2+ and showed a linear detection range of 0-1000 μM with a limit of detection of 2.20μ Min both aqueous and biological solutions.

Original language	English (US)
Pages (from-to)	4807-4813
Number of pages	7
Journal	Applied optics
Volume	60
Issue number	16
DOIs	https://doi.org/10.1364/AO.425453
State	Published - Jun 1 2021

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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title = "Tapered Mach-Zehnder interferometer based on PbS quantum dots modified by polymers for copper ion sensing",

abstract = "An optical fiber interferometer coated with PbS quantum dots (QDs) was developed for copper ion (Cu2+) detection. The QDs were modified by a multifunctional copolymer that enabled QD surface ligation, dispersion, and coordination withCu2+.Cu2+ coordination with the polymer induced changes in the surrounding refractive index of the interferometer. The sensor was highly selective for Cu2+ and showed a linear detection range of 0-1000 μM with a limit of detection of 2.20μ Min both aqueous and biological solutions.",

author = "Yuyang Yan and Meiduan Fan and Shuang Zhou and Xiaolan Sun and Longfei Ma and Ruoyu Li and Kost, {Alan R.}",

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T1 - Tapered Mach-Zehnder interferometer based on PbS quantum dots modified by polymers for copper ion sensing

AU - Yan, Yuyang

AU - Fan, Meiduan

AU - Zhou, Shuang

AU - Sun, Xiaolan

AU - Ma, Longfei

AU - Li, Ruoyu

AU - Kost, Alan R.

PY - 2021/6/1

Y1 - 2021/6/1

N2 - An optical fiber interferometer coated with PbS quantum dots (QDs) was developed for copper ion (Cu2+) detection. The QDs were modified by a multifunctional copolymer that enabled QD surface ligation, dispersion, and coordination withCu2+.Cu2+ coordination with the polymer induced changes in the surrounding refractive index of the interferometer. The sensor was highly selective for Cu2+ and showed a linear detection range of 0-1000 μM with a limit of detection of 2.20μ Min both aqueous and biological solutions.

AB - An optical fiber interferometer coated with PbS quantum dots (QDs) was developed for copper ion (Cu2+) detection. The QDs were modified by a multifunctional copolymer that enabled QD surface ligation, dispersion, and coordination withCu2+.Cu2+ coordination with the polymer induced changes in the surrounding refractive index of the interferometer. The sensor was highly selective for Cu2+ and showed a linear detection range of 0-1000 μM with a limit of detection of 2.20μ Min both aqueous and biological solutions.

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JO - Applied optics

JF - Applied optics

IS - 16

ER -

Tapered Mach-Zehnder interferometer based on PbS quantum dots modified by polymers for copper ion sensing

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