Abstract
We present the results of spectral investigations of optical and dielectric characteristics of solid Langmuir films of meso-substituted palladium tetraphenylporphyrin. Based on these characteristics, the spectrum of the polarizability α g of the ground state of the molecule has been obtained. Necessary Lorentz corrections that take into account the local field of the electromagnetic wave acting on the molecule have been introduced into the spectra of the absorption coefficient. Using the spectral method of electroabsorption, the differences of the polarizabilities Δα i = α ei − α g (i = 1, 2, 3) for the three excited states of the molecule α ei have been found, and their frequency spectra in narrow ranges near resonances have been shown.
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Original Russian Text © L.M. Blinov, V.V. Lazarev, S.G. Yudin, 2014, published in Optika i Spektroskopiya, 2014, Vol. 116, No. 1, pp. 116–121.
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Blinov, L.M., Lazarev, V.V. & Yudin, S.G. Spectral characteristics and molecular polarizabilities of ground and excited electronic states of thin tetraphenylporphyrin films. Opt. Spectrosc. 116, 105–109 (2014). https://doi.org/10.1134/S0030400X13120047
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DOI: https://doi.org/10.1134/S0030400X13120047