Random lasing films from multifunctional charged optical silica particles

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

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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
JournalSurface and Coatings Technology
Volume205
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2010 Dec 25

Fingerprint

Excitation energy
Thick films
Silicon Dioxide
Film thickness
lasing
Silica
silicon dioxide
shot
thick films
film thickness
flux density
thresholds
excitation

All Science Journal Classification (ASJC) codes

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

Cite this

Shin, Hee Won ; Oh, Seung Lim ; Galmiche, Laurent ; Lama, Béatrice ; Audebert, Pierre ; Kim, Yong Rok. / Random lasing films from multifunctional charged optical silica particles. In: Surface and Coatings Technology. 2010 ; Vol. 205, No. SUPPL. 1.
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Random lasing films from multifunctional charged optical silica particles. / Shin, Hee Won; Oh, Seung Lim; Galmiche, Laurent; Lama, Béatrice; Audebert, Pierre; Kim, Yong Rok.

In: Surface and Coatings Technology, Vol. 205, No. SUPPL. 1, 25.12.2010.

Research output: Contribution to journalArticle

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AU - Shin, Hee Won

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AU - Audebert, Pierre

AU - Kim, Yong Rok

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