TITLE

An influence functional theory of multiphonon processes in molecular vibrational energy relaxation

AUTHOR(S)
Shiga, Motoyuki; Okazaki, Susumu
PUB. DATE
September 1998
SOURCE
Journal of Chemical Physics;9/1/1998, Vol. 109 Issue 9, p3542
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Describes vibrational energy relaxation of molecules through an influence functional theory. Presentation of an algebraic formula of the perturbative influence functional; Implications of the approach for molecular based analysis of multiphonon processes; Derivation of computationally tractable expression for the relaxation time.
ACCESSION #
4164592

 

Related Articles

  • An improved theory of multiphonon relaxation in solids. Egorov, S. A.; Skinner, J. L. // Journal of Chemical Physics;12/8/1996, Vol. 105 Issue 22, p10153 

    We derive a general formula, using Fermi’s golden rule, for the multiphonon relaxation rate for a two-level system coupled off-diagonally to a bath of phonons. Our result is valid for any scalar form of the system-bath interaction potential. With our result we analyze experimental data...

  • Phonon relaxation processes in crystals (NaNO3) at high pressure and low temperature. Jordan, M.; Schuch, A.; Righini, R.; Signorini, G. F.; Jodl, H.-J. // Journal of Chemical Physics;9/1/1994, Vol. 101 Issue 5, p3436 

    NaNO3 is investigated in a diamond anvil cell in the pressure range of 0–9 GPa at 21 and 142 K by means of high-resolution Raman spectroscopy (HRRS). The pressure dependent linewidth of ν1 (symmetric stretch) is determined and discussed in the framework of anharmonic lattice dynamics....

  • 5D3–5D4 cross relaxation in Tb3+ pairs in CsCdBr3 crystals. Berdowski, P. A. M.; Lammers, M. J. J.; Blasse, G. // Journal of Chemical Physics;7/15/1985, Vol. 83 Issue 2, p476 

    The 5D3–5D4 cross relaxation process of Tb3+ in CsCdBr3 has been evaluated by analysis of the decay curves of the 5D3 and 5D4 emission. The temperature dependence of the cross relaxation rate can be explained assuming phonon-assisted processes. The results show that the larger amount of...

  • Criterion for selecting phonons and local vibrations involved in the nonradiative relaxation of.... Demos, S.G.; Calistru, Dana M. // Applied Physics Letters;2/26/1996, Vol. 68 Issue 9, p1195 

    Examines the criterion for selecting phonons and local vibrations involved in the nonradiative relaxation of photoexcited chromium ions in forsterite. Role of resonance energy between local vibrations of the impurity ion and lattice mode in phonon selection; Application of Raman spectroscopy;...

  • Quantum correction factors for multiphonon processes in condensed phase vibrational relaxation. Cherayil, Binny J. // Journal of Chemical Physics;9/22/2001, Vol. 115 Issue 12 

    An influence functional approach is used to determine the role of multiphonon processes in the rates of vibrational relaxation. Relaxation is considered to occur between a pair of coupled harmonic oscillators, representing an excited and a receiving mode on a single polyatomic solute, and a...

  • Multiphonon-relaxation processes in self-organized InAs/GaAs quantum dots. Heitz, R.; Grundmann, M. // Applied Physics Letters;1/15/1996, Vol. 68 Issue 3, p361 

    Investigates the multiphonon-relaxation processes in indium arsenide (InAs)/gallium arsenide quantum dot (QD). Relation between detection energy and QD size; Magnitude of InAs LO phonon energy; Role of phonon scattering in the shape of the photoluminescence excitation spectra.

  • Cooperative processes in glasses. Enaki, N. A.; Koroli, V. I. // AIP Conference Proceedings;2000, Vol. 519 Issue 1, p217 

    We studied the cooperative generation of non-equilibrium localized phonons (fractons), which can be observed in experimental studying of the re laxation of groups of excited atoms after the passage of short laser pulse through the glass sample. The increasing of the absorption coefficient in the...

  • A decay result to a viscoelastic problem in Rn with an oscillating kernel. Kafini, Mohammad; Tatar, Nasser-eddine // Journal of Mathematical Physics;Jul2010, Vol. 51 Issue 7, p073506 

    In this paper we consider a linear Cauchy viscoelastic problem. We show that, for compactly supported initial data and for not necessarily decreasing (oscillating) relaxation function, the decay of the first energy of solutions is polynomial. The proof relies on some appropriately chosen...

  • Exciton Energy Relaxation on Acoustic Phonons in Double-Quantum-Well Structures. Mazurenko, D. A.; Akimov, A. V. // Physics of the Solid State;Apr2001, Vol. 43 Issue 4, p752 

    The paper analyzes the rate of energy relaxation involving acoustic phonon emission between exciton states in a double quantum well. A theoretical study is made of the part played by two mechanisms, one of which is a one-step transition with emission of an acoustic phonon and the other is a...

Share

Read the Article

Courtesy of NEW JERSEY STATE LIBRARY

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics