Multiple-time-scale dynamic studies of nonlinear transmission of pulsed lasers in a multiphoton-absorbing organic material

Iam-choon Khoo, Andre Diaz

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

A dynamic model for the multiphoton interactions of an organic nonlinear absorber with pulsed lasers of various pulse durations spanning the femtosecond-to-microsecond time scale is presented. The formalism applies to all nonlinear absorbers with two-photon and singlet and triplet excited-state absorptions. Our quantitative analyses of experimental nonlinear transmission data and detailed exposition of the molecular dynamics have clearly illustrated the dynamic roles played by ground-and excited-states population saturation and depletion effects and their critical dependence on the laser intensity and temporal characteristics in governing the nonlinear transmission of pulsed lasers in such media.

Original languageEnglish (US)
Pages (from-to)1702-1710
Number of pages9
JournalJournal of the Optical Society of America B: Optical Physics
Volume28
Issue number7
DOIs
StatePublished - Jul 1 2011

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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