Fluorescence enhancement of quantum emitters with different energy systems near a single spherical metal nanoparticle

Yingjie Zhang; Ruoyang Zhang; Qingru Wang; Zhishuai Zhang; Haibo Zhu; Jiadong Liu; Feng Song; Shanxin Lin; Edwin Yue Bun Pun

doi:10.1364/OE.18.004316

Fluorescence enhancement of quantum emitters with different energy systems near a single spherical metal nanoparticle

Yingjie Zhang, Ruoyang Zhang, Qingru Wang, Zhishuai Zhang, Haibo Zhu, Jiadong Liu, Feng Song, Shanxin Lin, Edwin Yue Bun Pun

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

Abstract

We present a theoretical study of the influence of a single spherical metal nanoparticle (MNP) on the fluorescence intensity of nearby emitters with two-level and multi-level energy systems. The enhancement factors of the excitation and relaxation processes are deduced. To reveal the interrelationship between the excitation and relaxation processes we adopt the rate equations of two-level fluorescent systems and upconversion fluorescent systems, and deduce the expression for the fluorescence enhancement factor. Our calculated results for the two-level systems agree well with reported experimental data. As to the upconversion fluorescent systems, our numerical results provide the first theoretical prediction showing that the MNP may selectively enhance a certain fluorescence process among various ones.

Original language	English (US)
Pages (from-to)	4316-4328
Number of pages	13
Journal	Optics Express
Volume	18
Issue number	5
DOIs	https://doi.org/10.1364/OE.18.004316
State	Published - Mar 1 2010
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OE.18.004316

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title = "Fluorescence enhancement of quantum emitters with different energy systems near a single spherical metal nanoparticle",

abstract = "We present a theoretical study of the influence of a single spherical metal nanoparticle (MNP) on the fluorescence intensity of nearby emitters with two-level and multi-level energy systems. The enhancement factors of the excitation and relaxation processes are deduced. To reveal the interrelationship between the excitation and relaxation processes we adopt the rate equations of two-level fluorescent systems and upconversion fluorescent systems, and deduce the expression for the fluorescence enhancement factor. Our calculated results for the two-level systems agree well with reported experimental data. As to the upconversion fluorescent systems, our numerical results provide the first theoretical prediction showing that the MNP may selectively enhance a certain fluorescence process among various ones.",

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T1 - Fluorescence enhancement of quantum emitters with different energy systems near a single spherical metal nanoparticle

AU - Zhang, Yingjie

AU - Zhang, Ruoyang

AU - Wang, Qingru

AU - Zhang, Zhishuai

AU - Zhu, Haibo

AU - Liu, Jiadong

AU - Song, Feng

AU - Lin, Shanxin

AU - Pun, Edwin Yue Bun

PY - 2010/3/1

Y1 - 2010/3/1

N2 - We present a theoretical study of the influence of a single spherical metal nanoparticle (MNP) on the fluorescence intensity of nearby emitters with two-level and multi-level energy systems. The enhancement factors of the excitation and relaxation processes are deduced. To reveal the interrelationship between the excitation and relaxation processes we adopt the rate equations of two-level fluorescent systems and upconversion fluorescent systems, and deduce the expression for the fluorescence enhancement factor. Our calculated results for the two-level systems agree well with reported experimental data. As to the upconversion fluorescent systems, our numerical results provide the first theoretical prediction showing that the MNP may selectively enhance a certain fluorescence process among various ones.

AB - We present a theoretical study of the influence of a single spherical metal nanoparticle (MNP) on the fluorescence intensity of nearby emitters with two-level and multi-level energy systems. The enhancement factors of the excitation and relaxation processes are deduced. To reveal the interrelationship between the excitation and relaxation processes we adopt the rate equations of two-level fluorescent systems and upconversion fluorescent systems, and deduce the expression for the fluorescence enhancement factor. Our calculated results for the two-level systems agree well with reported experimental data. As to the upconversion fluorescent systems, our numerical results provide the first theoretical prediction showing that the MNP may selectively enhance a certain fluorescence process among various ones.

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Fluorescence enhancement of quantum emitters with different energy systems near a single spherical metal nanoparticle

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