Advances in surface-enhanced fluorescence

Lakowicz, Joseph R.; Geddes, Chris D.; Gryczyński, Ignacy; Malicka, Joanna; Gryczyński, Zygmunt; Aslan, Kadir; Łukomska, Joanna; Huang, Jun

doi:10.1117/12.542458

Cited by 35 publications

(40 citation statements)

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“…Over the past decade, the interaction of metals and fluorescent substances has become one of the hottest research areas [177][178][179]. When the incident light is irradiated onto the surface of the metal nanostructure, it will react with the subwavelength metal and the fluorescent groups are adsorbed on the metal surface.…”

Section: Surface-enhanced Fluorescencementioning

confidence: 99%

Exciton-plasmon coupling interactions: from principle to applications

et al. 2017

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Abstract:The interaction of exciton-plasmon coupling and the conversion of exciton-plasmon-photon have been widely investigated experimentally and theoretically. In this review, we introduce the exciton-plasmon interaction from basic principle to applications. There are two kinds of exciton-plasmon coupling, which demonstrate different optical properties. The strong exciton-plasmon coupling results in two new mixed states of light and matter separated energetically by a Rabi splitting that exhibits a characteristic anticrossing behavior of the exciton-LSP energy tuning. Compared to strong coupling, such as surface-enhanced Raman scattering, surface plasmon (SP)-enhanced absorption, enhanced fluorescence, or fluorescence quenching, there is no perturbation between wave functions; the interaction here is called the weak coupling. SP resonance (SPR) arises from the collective oscillation induced by the electromagnetic field of light and can be used for investigating the interaction between light and matter beyond the diffraction limit. The study on the interaction between SPR and exaction has drawn wide attention since its discovery not only due to its contribution in deepening and broadening the understanding of SPR but also its contribution to its application in light-emitting diodes, solar cells, low threshold laser, biomedical detection, quantum information processing, and so on.

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Section: Surface-enhanced Fluorescencementioning

confidence: 99%

Exciton-plasmon coupling interactions: from principle to applications

et al. 2017

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“…The fluorescing properties of molecular fluorophores in close proximity to metal NP are affected due to the strong electromagnetic field generated around the surface of the metal NP. Fluorophores that are very close to surface of the metal nanoparticle (i.e., < 5 nm) may interact electronically with the NP to donate the excited electrons to the metal, thus quenching the fluorescence by non-radiative channels available in the metal nanoparticle [61][62][63][64][65] . On the other hand, when there is no electron transfer, two opposite events can occur.…”

Section: Iv5) Impact Of Np Charging: Charge-selective Fluorescence Qmentioning

confidence: 99%

Charge-Selective Raman Scattering and Fluorescence Quenching by “Nanometal On Semiconductor” Substrates

Bhatt

Tan²,

Karumuri³

et al. 2010

Nano Lett.

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Ag nanoparticles synthesized on n and p-type Si were shown to exhibit charge-selective surface-enhanced Raman scattering and fluorescence quenching. As revealed by electric force microscopy, the polarity and magnitude of the nanoparticle charge is controllable with the metal-semiconductor Fermi level difference and nanoparticle size. It is inferred that the Fermi level alignment is dominantly contributed by the charge-induced nanoparticle voltage. Nanoparticle charging also accounts for self-inhibition of coalescence during chemical reduction, allowing strong plasmon hybridization.

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“…The phenomenon is demonstrated most effectively in fluorophores that have low quantum yields. Because of the energy associated with the longer wavelengths of the NIR, and the moderately low quantum yields associated with this class of compounds, the potential application for these compounds as MEF probes or labels are promising (Lakowicz, Parfenov et al 2003;Lakowicz, Geddes et al 2004). While these dyes are well-known, they are costly with limited commercial availability.…”

Section: Propertiesmentioning

confidence: 99%