Short Notes

Hizhnyakov, V.; Tehver, I.

doi:10.1002/pssb.2220820244

Cited by 62 publications

(65 citation statements)

References 3 publications

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“…A generalization of the Forster (1948) and Dexter (1953) theories to include excitation energy transfer from "hot" donor states was realised by Hizhnyakov (1972) Comparison of experimental results (among others, for rhodamine B in cellulose acetate films - Fig. 2 ) with the theoretical curve given by Eq.…”

Section: Self-depolarization Of Fluorescencementioning

confidence: 99%

Excitation Energy Transfer and Its Manifestation in Isotropic Media

Kawski

1983

Photochem & Photobiology

121

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Section: Self-depolarization Of Fluorescencementioning

confidence: 99%

Excitation Energy Transfer and Its Manifestation in Isotropic Media

Kawski

1983

Photochem & Photobiology

121

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“…A similar approach was used earlier by Hizhnyakov and co-workers [34][35][36] to describe the spectra of impurity centers in solids. There is perhaps also a pedagogical interest in such a treatment, since it provides a simplification and extension over the original pioneering and stimulating quantum field theoretic 17 derivation of Ovchinnikov and Ovchinnikova.…”

Section: Introductionmentioning

confidence: 99%

Linear response in theory of electron transfer reactions as an alternative to the molecular harmonic oscillator model

Georgievskii

Hsu

Marcus

1999

The Journal of Chemical Physics

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The effect of solvent fluctuations on the rate of electron transfer reactions is considered using linear response theory and a second-order cumulant expansion. An expression is obtained for the rate constant in terms of the dielectric response function of the solvent. It is shown thereby that this expression, which is usually derived using a molecular harmonic oscillator ͑''spin-boson''͒ model, is valid not only for approximately harmonic systems such as solids but also for strongly molecularly anharmonic systems such as polar solvents. The derivation is a relatively simple alternative to one based on quantum field theoretic techniques. The effect of system inhomogeneity due to the presence of the solute molecule is also now included. An expression is given generalizing to frequency space and quantum mechanically the analogue of an electrostatic result relating the reorganization free energy to the free energy difference of two hypothetical systems ͓J. Chem. Phys. 39, 1734 ͑1963͔͒. The latter expression has been useful in adapting specific electrostatic models in the literature to electron transfer problems, and the present extension can be expected to have a similar utility.

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“…This non-equilibrium secondary emission is called "hot" luminescence [l6], though one must be cautious when using this terminology, since one cannot properly define temperature ("hot" or "cold") outside the equilibrium. As was first emphasized by Hizhnyakov and Tehver [8,171, and as can be understood from the above arguments, the expression (2.4) contains luminescence, if the intermediate state interaction (relaxation) is properly taken into account. I n fact, in an "ideal" case where the radiative damping y K .…”

Section: (26)mentioning

confidence: 94%

“…To date, various summations appearing in (2.4) have been carried out only for a simple model of a localized electron (or infinite-mass exciton) coupled linearly with phonons. This was first done in [8]. The same model was used to analyze multiple-phonon resonance Rainan scattering in 11-\TI compounds [ZO].…”

Section: Dynamical Approachmentioning

confidence: 99%

“…The emitted light without distinguishing its character (luminescence or Raman scattering) is called secondary emission [8]. One might define and distinguish resonance Raman scattering and luminescence as one likes, but nature does not give a n a priori difference between these two pictures : All what one can measure experimentally is the incident light and the scattered light, and everything takes place inside a black box (crystal).…”

Section: Introductionmentioning

confidence: 99%

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Resonant Secondary Emission Spectroscopy

Kanehisa

Bałkanski

1980

Physica Status Solidi (b)

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A prospective view is taken of a new field of optical spectroscopy, unifying resonance Raman scattering and luminescence, with main emphasis on conceptual and theoretical aspects. The method consists in explicitly exploiting two independent sets of probes, (e, w, k) and (e', o', k'), i.e. polarization, frequency, and wave vector of incident and scattered photons, respectively. As compared with absorption spectroscopy, where one has only one set of probes (e, o, k), the secondary emission spectroscopy gives higher information about the dynamics of the material: interaction in the intermediate states or relaxation, characterized experimentally and theoretically by the secondary emission intensity P(e, o, k ; e', w', k'), which is a measure of polarization-, energy-, and momentum-correlation of incident and scattered photons.Es wird ein Vorausblick auf ein neues Feld der optischen Spektroskopie gegeben, das ResonanzRaman-Streuung und Lumineszenz vereinigt, wobei insbesondere konzeptionelle und theoretische Aspekte berucksichtigt werden. Die Methode besteht in der direkten Ausnutzung zweier unabhangiger Satze von Sonden (e, w , k) und (e', w', k'), d. h. Polarisation, Frequenz und Wellenvektor von einfallenden und gestreuten Photonen. Im Vergleich mit der Absorptionsspektroskopie mit nur einem Sondensatz (e, o, k) liefert die Sekundaremissionsspektroskopie mehr Informationen uber die Dynamik des Materials: Wechselwirkung in den Zwischenzustlnden oder Relaxation, experimentell und theoretisch charakterisiert durch die Sekundaremissionsintensitlt P(e, w, k ; e', w', k'), die ein Ma13 fur die Polarisations-, Energie-und Impuls-Korrelation von einfallenden und gestreuten Photonen darstellt.

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Short Notes

Cited by 62 publications

References 3 publications

Excitation Energy Transfer and Its Manifestation in Isotropic Media

Excitation Energy Transfer and Its Manifestation in Isotropic Media

Linear response in theory of electron transfer reactions as an alternative to the molecular harmonic oscillator model

Resonant Secondary Emission Spectroscopy

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