Measurement of two-photon absorption coefficient of dye molecules doped in polymer thin films based on ultrafast laser ablation

Jung Rim Nam, Chang Ho Kim, Sae Chae Jeoung, Ki Soo Lim, Hwan Myung Kim, Seung-Joon Jeon, Bong-Rae Cho

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Two-photon absorption cross-section of a series of dyes (1a-3a) in polymer thin films was determined by measuring the femtosecond laser ablation threshold. The ablation threshold decreased gradually when the dopant increased. The two-photon absorption cross-section of the dye molecules dispersed in the polymer film was estimated by using the theoretical relationship between the ablation threshold of the blended polymeric thin films and the dye concentration. The relative values of two-photon absorption cross-section are in good agreement with those measured in solution. On the other hand, the absolute values are smaller than the latter.

Original languageEnglish
Pages (from-to)210-214
Number of pages5
JournalChemical Physics Letters
Volume427
Issue number1-3
DOIs
Publication statusPublished - 2006 Aug 18

Fingerprint

Ultrafast lasers
Laser ablation
Polymer films
absorption cross sections
laser ablation
absorptivity
Coloring Agents
Photons
dyes
Ablation
Thin films
ablation
Molecules
thresholds
polymers
photons
thin films
molecules
Ultrashort pulses
Doping (additives)

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces
  • Condensed Matter Physics

Cite this

Measurement of two-photon absorption coefficient of dye molecules doped in polymer thin films based on ultrafast laser ablation. / Nam, Jung Rim; Kim, Chang Ho; Jeoung, Sae Chae; Lim, Ki Soo; Kim, Hwan Myung; Jeon, Seung-Joon; Cho, Bong-Rae.

In: Chemical Physics Letters, Vol. 427, No. 1-3, 18.08.2006, p. 210-214.

Research output: Contribution to journalArticle

Nam, Jung Rim ; Kim, Chang Ho ; Jeoung, Sae Chae ; Lim, Ki Soo ; Kim, Hwan Myung ; Jeon, Seung-Joon ; Cho, Bong-Rae. / Measurement of two-photon absorption coefficient of dye molecules doped in polymer thin films based on ultrafast laser ablation. In: Chemical Physics Letters. 2006 ; Vol. 427, No. 1-3. pp. 210-214.
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