Random lasing films from multifunctional charged optical silica particles

Hee Won Shin, Seung Lim Oh, Laurent Galmiche, Béatrice Lama, Pierre Audebert, Yong Rok Kim

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1 Citation (Scopus)


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 25μJ/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.

Original languageEnglish
Pages (from-to)S57-S61
JournalSurface and Coatings Technology
Issue numberSUPPL. 1
Publication statusPublished - 2010 Dec 25

Bibliographical note

Funding Information:
Pr. Y-R Kim, Dr. H-W Shin, Pr. P Audebert, and Dr. L Galmiche want to thank the Korea Foundation for International Cooperation of Science & Technology (KICOS) through a grant provided by the Korean Ministry of Education, Science & Technology (MEST) in 2008 (grant no. K20609000011-08B0100-00110 ). This study was supported by a grant of the Korea Healthcare technology R&D Project, Ministry for Health, Welfare & Family Affairs (grant no. A085136 ) and the Korea Science and Engineering Foundation through the Pioneer Converging Technology Program (grant no. 2010-0002190 ), Republic of Korea.

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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