THE QUENCHING OF THE IODINE FLUORESCENCE SPECTRUM

1958 ◽  
Vol 36 (1) ◽  
pp. 114-120 ◽  
Author(s):  
C. Arnot ◽  
C. A. McDowell
Keyword(s):  
Energy Transfer ◽  
Fluorescence Spectrum ◽  
Kinetic Scheme ◽  
Experimental Results ◽  
Inert Gases ◽  
Vibration Energy ◽  
Preliminary Results ◽  
Transfer Processes

The quenching of the iodine fluorescence spectrum by various inert gases and oxygen has been studied with a view to obtaining information on the efficiencies of vibration energy transfer processes in this system. Preliminary results here presented are in agreement with earlier work of Rössler and Eliaschevich and indicate that the transfer processes are very efficient. A kinetic scheme is proposed to account for the various possible quenching and transfer processes and it is shown that this is in agreement with experimental results.

Site selective fluorescence and purity of a rare earth garnet crystal

1981 ◽  
Vol 59 (16) ◽  
pp. 2441-2448 ◽  
Author(s):  
L. V. Haley ◽  
B. Jacquier ◽  
J. A. Koningstein
Keyword(s):  
Energy Transfer ◽  
Rare Earth ◽  
Fluorescence Spectroscopy ◽  
Fluorescence Spectrum ◽  
Experimental Results ◽  
Garnet Crystal ◽  
Excitation Spectra ◽  
Site Selective

Site selective fluorescence spectroscopy of a crystal of europium gallium garnet containing Cr3+ as an impurity has been carried out. An analysis of the experimental results reveals that the strongest fluorescence spectrum between 590.0 nm and 620.0 nm is due to emission from an Eu3+−Cr3+ pair. Fluorescences of farther removed pairs and that of Eu3+ occupying the 8-coordinated d site and 6-coordinated Ga3+ site are also assigned. Energy transfer between the various sites occurs while the excitation spectra for the R lines of Cr3+ show that extremely fast transfer takes place between the R2 and R1 levels.

scholarly journals Comparative Investigation on the Emission Properties of RAl3(BO3)4 (R = Pr, Eu, Tb, Dy, Tm, Yb) Crystals with the Huntite Structure

Crystals ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 44 ◽  
Author(s):  
Enrico Cavalli ◽  
Nikolay Leonyuk
Keyword(s):  
Energy Transfer ◽  
Comparative Investigation ◽  
Concentration Quenching ◽  
Lattice Defects ◽  
Experimental Results ◽  
Luminescence Properties ◽  
Emission Properties ◽  
Transfer Processes ◽  
Decay Profile ◽  
Excitation Dynamics

The luminescence properties of RAl3(BO3)4 (RAB, with R = Pr, Eu, Tb, Dy, Tm, Yb) huntite crystals grown from K2Mo3O10 flux were systematically characterized in order to investigate their excitation dynamics, with particular reference to the concentration quenching that in these systems is incomplete. To this purpose, selected excitation, emission, and decay profile measurements on diluted R:YAB crystals were carried out and compared with those of the concentrated compounds. The effects of the energy transfer processes and of the lattice defects, as well as the ion-lattice interactions, have been taken into consideration in order to account for the experimental results.

Energy transfer processes of working gas in pulse tube

2000 ◽  
Author(s):  
Vincenzo Naso ◽  
Marco Lucentini ◽  
Wei Dong
Keyword(s):  
Energy Transfer ◽  
Pulse Tube ◽  
Transfer Processes
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