Two excited levels of the M-center, located below the F band, have been found by measurements of bleaching and fluorescence with polarized light. Irradiation with light in the F-center absorption band, polarized in the [110] direction, leads to a reorientation of the M centers in a direction parallel to the electric field.Des mesures de blanchiment et de fluorescence en lumière polarisée ont permis de mettre en évidence la présence de deux niveaux excités du centre M, situés sous la bande F et correspondant à des dipôles orientés suivant les directions [110] et [001]. L'irradiation avec de la lumière correspondant à l'absorption de la bande F, polarisée suivant la direction [110], conduit à une réorientation des centres M, parallèlement à ...
The off-axis configuration of FA centers in RbCl: Li+ has been investigated by means of luminescence...
Un dichroïsme important suivant la direction [1[MATH]0] de la bande d'absorption des centres H de KB...
Because of their electro-optical, non-linear optical and photorefractive effect, lithium niobate cry...
Two excited levels of the M-center, located below the F band, have been found by measurements of ble...
The 4 500 Å absorption band in lithium fluoride is known as the M band. This band is in fact due to ...
The photostimulated reorientation of FA centers in RbCl:Li+ has been studied by means of luminescenc...
The F center is the prototype of the excess electron color centers. Although many of the properties ...
The optical properties of LiF are dépendent on the divalent positive impurities, such as magnesium, ...
Une bande d'absorption à 5 500 Å apparaît dans des cristaux de fluorure de lithium fortement irradié...
Luminescent excitation spectra were measured for the F and M centers in KCl; in particular, for the...
Within this thesis, an experimental study of the photo double ionization (PDI) and the simultaneous ...
La formation des centres M et R dans LiF est précédée par l'apparition de centres F+2 et F+3 formés ...
Within this thesis, an experimental study of the photo double ionization (PDI) and the simultaneous ...
La propriété magnétique de l'état excité relaxé (RES) du centre F s'est révélée de l'étude expérimen...
Because of their electro-optical, non-linear optical and photorefractive effet, lithium niobate crys...
The off-axis configuration of FA centers in RbCl: Li+ has been investigated by means of luminescence...
Un dichroïsme important suivant la direction [1[MATH]0] de la bande d'absorption des centres H de KB...
Because of their electro-optical, non-linear optical and photorefractive effect, lithium niobate cry...
Two excited levels of the M-center, located below the F band, have been found by measurements of ble...
The 4 500 Å absorption band in lithium fluoride is known as the M band. This band is in fact due to ...
The photostimulated reorientation of FA centers in RbCl:Li+ has been studied by means of luminescenc...
The F center is the prototype of the excess electron color centers. Although many of the properties ...
The optical properties of LiF are dépendent on the divalent positive impurities, such as magnesium, ...
Une bande d'absorption à 5 500 Å apparaît dans des cristaux de fluorure de lithium fortement irradié...
Luminescent excitation spectra were measured for the F and M centers in KCl; in particular, for the...
Within this thesis, an experimental study of the photo double ionization (PDI) and the simultaneous ...
La formation des centres M et R dans LiF est précédée par l'apparition de centres F+2 et F+3 formés ...
Within this thesis, an experimental study of the photo double ionization (PDI) and the simultaneous ...
La propriété magnétique de l'état excité relaxé (RES) du centre F s'est révélée de l'étude expérimen...
Because of their electro-optical, non-linear optical and photorefractive effet, lithium niobate crys...
The off-axis configuration of FA centers in RbCl: Li+ has been investigated by means of luminescence...
Un dichroïsme important suivant la direction [1[MATH]0] de la bande d'absorption des centres H de KB...
Because of their electro-optical, non-linear optical and photorefractive effect, lithium niobate cry...