Non-radiative decay of a dipole emitter close to a metallic nanoparticle: Importance of higher-order multipole contributions

Moroz, Alexander

doi:10.1016/j.optcom.2010.01.061

Cited by 51 publications

(86 citation statements)

References 41 publications

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“…A detailed discussion can be found in ref. 53,55, since this goes beyond the scope of this work. Thus, control of AuNP to dye distances and assembly characteristics allow to tune subtle physical effects for biological and physical applications, which can be extended in the future.…”

Section: Resultsmentioning

confidence: 99%

Molecular protein adaptor with genetically encoded interaction sites guiding the hierarchical assembly of plasmonically active nanoparticle architectures

et al. 2015

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The control over the defined assembly of nano-objects with nm-precision is important to create systems and materials with enhanced properties, for example, metamaterials. In nature, the precise assembly of inorganic nano-objects with unique features, for example, magnetosomes, is accomplished by efficient and reliable recognition schemes involving protein effectors. Here we present a molecular approach using protein-based 'adaptors/ connectors' with genetically encoded interaction sites to guide the assembly and functionality of different plasmonically active gold nanoparticle architectures (AuNP). The interaction of the defined geometricaly shaped protein adaptors with the AuNP induces the self-assembly of nanoarchitectures ranging from AuNP encapsulation to one-dimensional chain-like structures, complex networks and stars. Synthetic biology and bionanotechnology are applied to co-translationally encode unnatural amino acids as additional site-specific modification sites to generate functionalized biohybrid nanoarchitectures. This protein adaptor-based nanoobject assembly approach might be expanded to other inorganic nano-objects creating biohybrid materials with unique electronic, photonic, plasmonic and magnetic properties.

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Section: Resultsmentioning

confidence: 99%

Molecular protein adaptor with genetically encoded interaction sites guiding the hierarchical assembly of plasmonically active nanoparticle architectures

et al. 2015

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“…As previously described, the decay rates of quantum emitters near metallic NP have been studied both theoretically [24][25][26][27][28][29][30][31][32][33][34]36 and experimentally [37][38][39][40][41][42][43][44][45][46][47][48][49] for a variety of NP sizes. However, a systematic investigation of the influence of the metal NP size on the several dependencies of the decay rates has not been undertaken and that is what we investigate in this section.…”

Section: A Decay Ratesmentioning

confidence: 99%

“…Of particular importance is the influence that the localized surface plasmon (LSP) excited at the surface of noble metal NPs has on the optical interactions of quantum systems. [18][19][20][21][22][23] The interaction of emitters with metallic nanospheres has been extensively studied, both theoretically [24][25][26][27][28][29][30][31][32][33][34][35][36] and experimentally. [37][38][39][40][41][42][43][44][45][46][47][48][49] There have been reports using different metallic NP size regimes and a variety of quantum dot and dye fluorophores.…”

Section: Introductionmentioning

confidence: 99%

A theoretical investigation of the influence of gold nanosphere size on the decay and energy transfer rates and efficiencies of quantum emitters

Marocico

Zhang

Bradley

2016

The Journal of Chemical Physics

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Articles you may be interested inWe present in this contribution a comprehensive investigation of the effect of the size of gold nanospheres on the decay and energy transfer rates of quantum systems placed close to these nanospheres. These phenomena have been investigated before, theoretically and experimentally, but no comprehensive study of the influence of the nanoparticle size on important dependences of the decay and energy transfer rates, such as the dependence on the donor-acceptor spectral overlap and the relative positions of the donor, acceptor, and nanoparticle, exists. As such, different accounts of the energy transfer mechanism have been presented in the literature. We perform an investigation of the energy transfer mechanisms between emitters and gold nanospheres and between donor-acceptor pairs in the presence of the gold nanospheres using a Green's tensor formalism, experimentally verified in our lab. We find that the energy transfer rate to small nanospheres is greatly enhanced, leading to a strong quenching of the emission of the emitter. When the nanosphere size is increased, it acts as an antenna, increasing the emission of the emitter. We also investigate the emission wavelength and intrinsic quantum yield dependence of the energy transfer to the nanosphere. As evidenced from the literature, the energy transfer process between the quantum system and the nanosphere can have a complicated distance dependence, with a r −6 regime, characteristic of the Förster energy transfer mechanism, but also exhibiting other distance dependences. In the case of a donor-acceptor pair of quantum systems in the presence of a gold nanosphere, when the donor couples strongly to the nanosphere, acting as an enhanced dipole; the donor-acceptor energy transfer rate then follows a Förster trend, with an increased Förster radius. The coupling of the acceptor to the nanosphere has a different distance dependence. The angular dependence of the energy transfer efficiency between donor and acceptor exhibits a strong focusing effect and the same enhanced donor-dipole character in different angular arrangements. The spectral overlap of the donor emission and acceptor absorption spectra shows that the energy transfer follows the near-field scattering efficiency, with a red-shift from the localized surface plasmon peak for small sphere sizes. C 2016 AIP Publishing LLC. [http://dx

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“…Copyright 2012, American Chemical Society.) distance dependence, which has been investigated in theory [71][72][73][74][75][76] and in practice for different energy donors such as organic dyes [77][78][79][80][81][82][83][84], semiconductor quantum dots [85][86][87][88][89][90], or fluorescent proteins [91]. Among all these different systems, different mechanisms have been proposed to be responsible for the energy transfer and a general model for energy transfer to metal nanoparticles does not exist.…”

Section: Bret and Cretmentioning

confidence: 99%

How to Apply FRET: From Experimental Design to Data Analysis

Hildebrandt

2013

FRET – Förster Resonance Energy Transfer

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Introduction: FRET -More Than a Four-Letter Word! F€ orster resonance energy transfer (FRET) is a very special scientific topic because it inspires and challenges many theoretical and experimental scientists from different research disciplines ranging from the fundamental life sciences over theoretical physics and chemistry up to applied technology in physics, electronics, chemistry, medicine, and biology. Almost as versatile as the topic itself is the discussion about the acronym FRET or rather about the first letter "F." Should it be "F" like fluorescence, which is most often involved in FRET experiments (although FRET is a nonradiative energy transfer)? Or "F" like F€ orster, who was the first person to develop a theory relating spectroscopic data such as absorption and emission spectra to the energy transfer efficiency, donor-acceptor molecule distances and orientations (although many other scientists were involved in the discovery of FRET)? Or should the "F" be completely erased in order to circumvent the discussion (or to avoid four-letter words)? Personally, I prefer to use "F€ orster" in acknowledgment of his achievements and in order to avoid the term fluorescence, but probably the most important aspect of this discussion is the fact that it is not an important discussion. FRET is a very useful and interesting technology and its experimental application and theoretical treatment for the many possible FRET systems should be investigated, discussed, and developed. Although the main theory was contributed by F€ orster in the 1940s, FRET is a very modern technology because the r À6 distance dependence over approximately 1-20 nm fits extremely well into the recent discoveries and investigations in nanoscience and nanobiotechnology [1]. The everincreasing number of donor-acceptor pairs (cf. Chapter 14) is another evidence for the contemporary relevance of FRET.This chapter will cover the main aspects of what FRET is, what FRET can be used for (and for what it should better not be used), how a FRET experiment should be designed and performed, what mathematics is absolutely necessary, and how the experimental results can be processed and interpreted. It must also be mentioned that there is no one recipe for all FRET experiments. The main part of this chapter should rather be understood as a guide to FRET, providing useful information that FRET -Förster Resonance Energy Transfer: From Theory to Applications, First Edition. Edited by Igor Medintz and Niko Hildebrandt.

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Non-radiative decay of a dipole emitter close to a metallic nanoparticle: Importance of higher-order multipole contributions

Cited by 51 publications

References 41 publications

Molecular protein adaptor with genetically encoded interaction sites guiding the hierarchical assembly of plasmonically active nanoparticle architectures

Molecular protein adaptor with genetically encoded interaction sites guiding the hierarchical assembly of plasmonically active nanoparticle architectures

A theoretical investigation of the influence of gold nanosphere size on the decay and energy transfer rates and efficiencies of quantum emitters

How to Apply FRET: From Experimental Design to Data Analysis

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