Absence of mutual polariton scattering for strongly coupled surface plasmon polaritons and dye molecules with a large Stokes shift

Koponen, Mikko; Hohenester, Ulrich; Hakala, Tommi K.; Toppari, J. Jussi

doi:10.1103/physrevb.88.085425

Cited by 19 publications

(30 citation statements)

References 42 publications

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“…In a certain limit of parameters, the resulting inhomogeneous broadening of the molecular absorption/emission then determines the linewidth of the polariton modes. In particular, our model explains the asymmetric emission spectra of upper and lower polaritons seen in many experiments [22][23][24][25][26][27], as well as the varying polarization of that emission depending on the quantum coherence of the system, as shown recently [22].…”

Section: Introductionsupporting

confidence: 63%

Theory for the stationary polariton response in the presence of vibrations

et al. 2019

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We construct a model describing the response of a hybrid system where the electromagnetic field-in particular, surface plasmon polaritons-couples strongly with electronic excitations of atoms or molecules. Our approach is based on the input-output theory of quantum optics, and in particular it takes into account the thermal and quantum vibrations of the molecules. The latter is described within the P(E ) theory analogous to that used in the theory of dynamical Coulomb blockade. As a result, we are able to include the effect of the molecular Stokes shift on the strongly coupled response of the system. Our model then accounts for the asymmetric emission from upper and lower polariton modes. It also allows for an accurate description of the partial decoherence of the light emission from the strongly coupled system. Our results can be readily used to connect the response of the hybrid modes to the emission and fluorescence properties of the individual molecules, and thus are relevant in understanding any utilization of such systems, such as coherent light harvesting.

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Section: Introductionsupporting

confidence: 63%

Theory for the stationary polariton response in the presence of vibrations

et al. 2019

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“…the main peak) and shoulder peak of the dye system; and one that is plasmonic, the SPP. Strong coupling between SPPs and a number of other molecular systems having broad absorption spectra has recently been demonstrated, for instance with dyes such as Rhodamine 800 [95], Sulforhodamine 101 [96], Nile Red [165] and even bio-molecules such as beta-carotene [166]. A systematic study of several different dyes (Rhodamine 640, cresyl violet 670, malachite green, oxazine 720 and 725, methylene blue, DOTCI, HITC) coupled with Au nanorods of various sizes (∼ 50 − 100 nm) and shapes was pursued in [167].…”

Section: Dye and Photochromic Moleculesmentioning

confidence: 99%

Strong coupling between surface plasmon polaritons and emitters: a review

2014

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Abstract. In this review we look at the concepts and state-of-the-art concerning the strong coupling of surface plasmon-polariton modes to states associated with quantum emitters such as excitons in J-aggregates, dye molecules and quantum dots. We explore the phenomenon of strong coupling with reference to a number of examples involving electromagnetic fields and matter. We then provide a concise description of the relevant background physics of surface plasmon polaritons. An extensive overview of the historical background and a detailed discussion of more recent relevant experimental advances concerning strong coupling between surface plasmon polaritons and quantum emitters is then presented. Three conceptual frameworks are then discussed and compared in depth: classical, semi-classical and fully quantum mechanical; these theoretical frameworks will have relevance to strong coupling beyond that involving surface plasmon polaritons. We conclude our review with a perspective on the future of this rapidly emerging field, one we are sure will grow to encompass more intriguing physics and will develop in scope to be of relevance to other areas of science.

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“…The angleresolved scattering was collected with an optical fiber connected to a spectrometer (Jobin Yvon iHR320) equipped with a CCD camera (Jobin Yvon Symphony). More details about the optical setup can be found elsewhere [57][58][59].…”

Section: Optical Characterizationmentioning

confidence: 99%

Influence of Fano resonance on SERS enhancement in Fano-plasmonic oligomers

et al. 2019

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Plasmonic oligomers can provide profound Fano resonance in their scattering responses. The sub-radiant mode of Fano resonance can result in significant near-field enhancement due to its light trapping capability into the so-called hotspots. Appearance of these highly localized hotspots at the excitation and/or Stokes wavelengths of the analytes makes such oligomers promising SERS active substrates. In this work, we numerically and experimentally investigate optical properties of two disk-type gold oligomers, which have different strength and origin of Fano resonance. Raman analysis of rhodamine 6G and adenine with the presence of the fabricated oligomers clearly indicates that an increment in the strength of Fano resonance can improve the Raman enhancement of an oligomer significantly. Therefore, by suitable engineering of Fano lineshape, one can achieve efficient SERS active substrates with spatially localized hotspots.

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Absence of mutual polariton scattering for strongly coupled surface plasmon polaritons and dye molecules with a large Stokes shift

Cited by 19 publications

References 42 publications

Theory for the stationary polariton response in the presence of vibrations

Theory for the stationary polariton response in the presence of vibrations

Strong coupling between surface plasmon polaritons and emitters: a review

Influence of Fano resonance on SERS enhancement in Fano-plasmonic oligomers

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