Journal ArticleDOI
Effects of Diffusion on Energy Transfer by Resonance
Mario Yokota,Osamu Tanimoto +1 more
TLDR
In this paper, the effects of diffusion on energy transfer between molecules are considered by using two methods: scattering length method and the Pade approximant with the diffusion constant as the expansion parameter.Abstract:
Effects of diffusion on energy transfer between molecules are considered by using two methods. One is the scattering length method, and the other is the Pade approximant with the diffusion constant as the expansion parameter. From these methods we obtain the decay function of the emission by excited molecules in a closed form of time t . The decay constant is expressed as a function of diffusion constant and is compared with the experimental results obtained by Tomura and Ishiguro.read more
Citations
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Journal ArticleDOI
Upconversion and Anti-Stokes Processes with f and d Ions in Solids
TL;DR: Before the 1960s, all anti-Stokes emissions, which were known to exist, involved emission energies in excess of excitation energies by only a few kT and were linked to thermal population of energy states above excitation states by such an energy amount.
Journal ArticleDOI
Singlet exciton energy transfer in organic solids
Richard C. Powell,Z. G. Soos +1 more
TL;DR: A comprehensive review of the experimental data which have been obtained on singlet exciton energy transfer in organic crystals is presented in this article, where the usefulness of different types of experimental techniques in elucidating the characteristics of both exciton migration and trapping is discussed.
Journal ArticleDOI
Luminescence Decay by Energy Migration and Transfer: Observation of Diffusion-Limited Relaxation
Journal ArticleDOI
Ca9Lu(PO4)7:Eu2+,Mn2+: A Potential Single-Phased White-Light-Emitting Phosphor Suitable for White-Light-Emitting Diodes
TL;DR: The obtained phosphor exhibits a strong excitation band between 250 and 430 nm, matching well with the dominant emission band of a UV light-emitting-diode (LED) chip.
Journal ArticleDOI
Quasi-three-level solid-state lasers in the near and mid infrared based on trivalent rare earth ions
TL;DR: Quasi-three-level solid state solid-state lasers using trivalent rare earth ions are efficient sources in the near and mid-infrared spectral regions as mentioned in this paper, and their unique properties arise from special energy level structures in different host materials and highly efficient laser operation became possible with the availability of highly efficient high-brightness pump sources like laser diodes.
References
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Journal ArticleDOI
A Theory of Sensitized Luminescence in Solids
TL;DR: In this article, the resonance theory of Forster, which involves only allowed transitions, is extended to include transfer by means of forbidden transitions which, it is concluded, are responsible for the transfer in all inorganic systems yet investigated.
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Influence of Resonance Transfer on Luminescence Decay
TL;DR: In this paper, the effects of dipole resonance transfer on the population and decay of excited donor molecules are discussed and the limitation of previous treatments of this problem to flash excitation is demonstrated.
Journal ArticleDOI
Sur la relaxation nucleaire dans les cristaux ioniques
TL;DR: In this article, a composante de 1'aimantation nucleaire globale paralleleau au champ statique obeit a simple equation simple de relaxation, which modifiee si les impuretes forment des amas ou se groupent sur des dislocations.