Surface Plasmon Characteristics of Tunable Photoluminescence in Single Gold Nanorods

Bouhélier, Alexandre; Bachelot, Renaud; Lerondel, Gilles; Kostcheev, Sergeï; Royer, Pascal; Wiederrecht, Gary P.

doi:10.1103/physrevlett.95.267405

Cited by 368 publications

(377 citation statements)

References 23 publications

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“…The benefit of two-photon excitation is an improvement of the spatial resolution over what can typically be achieved by confocal fluorescence imaging. Proposed mechanisms for luminescence from Au or Ag nanostructures include fluorescence by interband transitions (7,(11)(12)(13)(14)(15)(16), intraband transitions (17), and radiative decay of surface plasmons (18)(19)(20)(21).…”

mentioning

confidence: 99%

Resonant secondary light emission from plasmonic Au nanostructures at high electron temperatures created by pulsed-laser excitation

Huang¹,

Wang

Murphy³

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

139

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Plasmonic nanostructures are of great current interest as chemical sensors, in vivo imaging agents, and for photothermal therapeutics. We study continuous-wave (cw) and pulsed-laser excitation of aqueous suspensions of Au nanorods as a model system for secondary light emission from plasmonic nanostructures. Resonant secondary emission contributes significantly to the background commonly observed in surface-enhanced Raman scattering and to the light emission generated by pulsed-laser excitation of metallic nanostructures that is often attributed to two-photon luminescence. Spectra collected using cw laser excitation at 488 nm show an enhancement of the broad spectrum of emission at the electromagnetic plasmon resonance of the nanorods. The intensity of anti-Stokes emission collected using cw laser excitation at 785 nm is described by a 300 K thermal distribution of excitations. Excitation by subpicosecond laser pulses at 785 nm broadens and increases the intensity of the anti-Stokes emission in a manner that is consistent with electronic Raman scattering by a high-temperature distribution of electronic excitations predicted by a two-temperature model. Broadening of the pulse duration using an etalon reduces the intensity of anti-Stokes emission in quantitative agreement with the model. Experiments using a pair of subpicosecond optical pulses separated by a variable delay show that the timescale of resonant secondary emission is comparable to the timescale for equilibration of electrons and phonons.gold nanorods | electron-hole pairs | surface-enhanced Raman scattering background

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mentioning

confidence: 99%

Resonant secondary light emission from plasmonic Au nanostructures at high electron temperatures created by pulsed-laser excitation

Huang¹,

Wang

Murphy³

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

139

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“…If the particle shape is not spherical, it may have several plasmon resonance modes [65]. Luminescence from individual gold nanorods with different shapes was investigated by Bouhelier et al [71]. Two photon excited gold nanoparticles shows light emission originating from the radiative decay of surface plasmons.…”

Section: Surface Plasmon Tuning In Visible Wavelengthmentioning

confidence: 99%

Imaging and spectroscopy through plasmonic nano-probe

Saito

Verma

2009

Eur. Phys. J. Appl. Phys.

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Abstract. This article is a comprehensive review of the subject of near-field nano imaging and spectroscopy by surface plasmon polaritons induced on a metallized probe. The emphasis of the review is on fundamental aspects of plasmon enhancement and near-field spectroscopy, which are categorized as optical antenna structures, polarization properties in near-field, resonance frequency of surface plasmons, etc. Most recent studies that contribute to the understanding and interpretation of these phenomena are highlighted. Applications of near-field optics as newly established analytical tools for biology, materials sciences and plasmonic superlenses are included in the article.

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“…Banking on high  (3) values, optical switching was reported in the percolation threshold of Au nanoclusters in SiO 2 matrix [9], and Cu nanoclusters on Si 3 N 4 film [41]. A reversible electronic threshold switching was reported in percolative Ag nanoclusters embedded in polymer matrix [42].…”

Section: Introductionmentioning

confidence: 97%

“…Understanding the light-matter interaction at nanometre scale is a fundamental issue in optoelectronics and nanophotonics which are prerequisites for advanced sensor applications, namely, optical switching (abrupt change in resistance with exposed light signal) devises using all-optical signal processing [1,2], two photon absorption (TPA) enhanced second harmonic generation (SHG) [3], renewable energy resourcing by guiding and localizing light and considerable reduction in absorption layer thickness [4], and in the bio-organic sensing and in medical therapy encompassing early detection of beginning of life using shift in plasmonic resonance frequency in the presence motion of molecular motors [5] and in controlling tumour by generating heat using the adiabatic heating of plasmonic vibration [6].…”

Section: Introductionmentioning

confidence: 99%

Surface plasmon polariton assisted optical switching in noble bimetallic nanoparticle system

Dhara

Magudapathy

et al. 2015

Applied Physics Letters

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Photoresponse of bimetallic Au-Ag nanoparticle embedded soda glass (Au-Ag@SG) substrate is reported for surface plasmon assisted optical switching using 808 nm excitation.Au-Ag@SG system is made by an ion beam technique where Ag + is introduced first in the soda glass matrix by ion exchange technique. Subsequently 400 keV Au + is implanted in the sample for different fluences which is followed by an ion beam annealing process using 1MeV Si + at a fixed fluence of 2E16 ions.cm -2 . Characteristic surface plasmon resonance (SPR) peaks around 400 and 550 nm provided evidence for the presence of Au and Ag nanoparticles. An optical switching in the Au-Ag@SG system with 808 nm, which is away from the characteristic SPR peaks of Ag and Au nanoparticles, suggests the possible role of TPA owing to the presence of interacting electric dipole in these systems. The role of surface plasmon polariton is emphasized for the propagation of electronic carrier belonging to the conduction electron of Au-Ag system in understanding the observed photoresponse. Unique excitation dependent photoresponse measurements confirm the possible role of TPA process.A competitive interband and intraband transitions in the bimetallic system of Au and Ag with 2 may be primarily responsible for the observation, which are validated qualitatively using finite difference time domain calculations where inter-particle separation of Au and Ag play an important role. Thus, a smart way of optical switching can be envisaged in noble bimetallic nanocluster system where long wavelength with higher skin depth can be used for communication purpose.

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Surface Plasmon Characteristics of Tunable Photoluminescence in Single Gold Nanorods

Cited by 368 publications

References 23 publications

Resonant secondary light emission from plasmonic Au nanostructures at high electron temperatures created by pulsed-laser excitation

Resonant secondary light emission from plasmonic Au nanostructures at high electron temperatures created by pulsed-laser excitation

Imaging and spectroscopy through plasmonic nano-probe

Surface plasmon polariton assisted optical switching in noble bimetallic nanoparticle system

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