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Accueil > Recherche > Publications / brevets > Publications équipe ENSEMBLE > Publications Moléc nanomat fluo

Random lasing films from multifunctional charged optical silica particles

H.-W. Shin, S.-L. Oh, L. Galmiche, B. Lama, P. Audebert and Y.-R. Kim Surface and Coatings Technology, 2010, 205 (Supplement 1), S57-S61

Références :

Surface and Coatings Technology, 2010, 205 (Supplement 1), S57-S61

Auteur(s) : 

H.-W. Shin, S.-L. Oh, L. Galmiche, B. Lama, P. Audebert and Y.-R. Kim




Multifunctional SiO2 particles with charged and fluorescent properties were synthesized and their films with different thickness were prepared using electrophoretic deposition for random lasing. In case of 50-μm-thick film, when the excitation energy density increases above 25 μJ/cm2, spectral narrowing and nonlinear increasing of intensity were observed. To get more information on lasing, single-shot spectrum was measured. Finally, the dependence of the lasing behavior, including the recognition of the existence of a threshold on the film thickness was demonstrated.




Type :
Publication
Dates :
Paru le 1 avril 2010
Informations complémentaires :
DOI: 10.1016/j.surfcoat.2010.04.035

 

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