Optical properties in Langmuir–Blodgett films of crystal violet dyes adsorbing cyanine dyes

Kato, Keizo; Shinbo, Kazunari; Obata, Katsunari; Kaneko, Futao

doi:10.1016/s0379-6779(99)00391-4

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…The absorption and PL spectra are almost the same as those previously reported. 9,11) For the MC LB film, the sharp absorption peak and small Stokes shift indicate the formation of J-aggregate. For the MC/CV hetero-LB film, the apparent shape of the absorption and PL spectra were almost the superposition of those of MC and CV LB films.…”

Section: Resultsmentioning

confidence: 99%

Surface Plasmon Emission Light Property due to Molecular Luminescence and Molecular Interaction

Shinbo

Toyoshima

Ohdaira

et al. 2005

Jpn. J. Appl. Phys.

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Surface plasmon (SP) emission light was observed for a merocyanine (MC) Langmuir-Blodgett (LB) film and an MC/crystal violet (CV) hetero-LB film in the ATR Kretschmann configuration. Intense photoluminescence of CV and quenching of MC were observed due to an energy transfer from MC to CV in the hetero-LB film. SP emission light due to CV was also observed for the MC/CV hetero-LB film. Furthermore, the emission light properties of the MC/CV hetero-LB film did not depend on the polarization direction of excitation light and were considered to be a result of the molecular shape of CV.

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Section: Resultsmentioning

confidence: 99%

Surface Plasmon Emission Light Property due to Molecular Luminescence and Molecular Interaction

Shinbo

Toyoshima

Ohdaira

et al. 2005

Jpn. J. Appl. Phys.

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“…The achieved ͑2͒ gratings were characterized by second harmonic diffraction, while no linear diffraction was detected. Possible applications of these structures are phase matched second harmonic generation in waveguides coated with a nonlinear grating, 18 exploiting the patterning capabilities of SEM to implement two-dimensional quasi-phase matching mechanisms 19 or the suppression or enhancement of second harmonic generation at interfaces through Wood's resonance anomalies. 20,21 The method presented might moreover be useful to perform selective nonlinear spectroscopy of dyes at or close to nanostructures.…”

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confidence: 99%

Molecular χ(2) gratings via electron-beam lithography

Domínguez-Juárez

Macovez

González³

et al. 2010

Applied Physics Letters

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We show that the nonlinear optical activity of an organic molecule may be quenched by electron irradiation. Exploiting this effect, we inscribe periodic ͑2͒ patterns in the molecular films by means of a scanning electron microscope. The second harmonic diffraction efficiency of the resulting ͑2͒ gratings is measured. The relative intensity of the diffraction orders observed agrees with the expectations for a sheet of nonlinear dipoles with a periodic modulation. No linear diffraction is seen. The present method allows realizing any type of two-dimensional ͑2͒ pattern with a resolution only limited by the electron beam patterning capabilities.

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Light Emission Property from Organic Dye Thin Films due to Excitation of Multiple Surface Plasmons

Nakano¹,

Terakado²,

Kaneko

et al. 2002

Jpn. J. Appl. Phys.

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We study the level spacing distribution p(s) in the spectrum of random networks. According to our numerical results, the shape of p(s) in the Erdős-Rényi (E-R) random graph is determined by the average degree k and p(s) undergoes a dramatic change when k is varied around the critical point of the percolation transition, k = 1. When k 1, the p(s) is described by the statistics of the Gaussian orthogonal ensemble (GOE), one of the major statistical ensembles in Random Matrix Theory, whereas at k = 1 it follows the Poisson level spacing distribution. Closely above the critical point, p(s) can be described in terms of an intermediate distribution between Poisson and the GOE, the Brodydistribution. Furthermore, below the critical point p(s) can be given with the help of the regularized Gamma-function. Motivated by these results, we analyse the behaviour of p(s) in real networks such as the internet, a word association network and a protein-protein interaction network as well. When the giant component of these networks is destroyed in a node deletion process simulating the networks subjected to intentional attack, their level spacing distribution undergoes a similar transition to that of the E-R graph.

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Optical properties in Langmuir–Blodgett films of crystal violet dyes adsorbing cyanine dyes

Cited by 3 publications

References 8 publications

Surface Plasmon Emission Light Property due to Molecular Luminescence and Molecular Interaction

Surface Plasmon Emission Light Property due to Molecular Luminescence and Molecular Interaction

Molecular χ(2) gratings via electron-beam lithography

Light Emission Property from Organic Dye Thin Films due to Excitation of Multiple Surface Plasmons

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