Distributed feedback laser action in reflection geometry from a dye-doped polymer film

Fei Chen, Jean Michel Nunzi

Research output: Journal PublicationArticlepeer-review

6 Citations (Scopus)


Rhodamine 6G doped poly(methyl methacrylate) thin films were prepared on glass substrates. Tuneable distributed feedback (DFB) lasing output in a reflection grating geometry was realized in the films. Pure gain coupling and an additional index coupling were created in the films by the two crossing pump beams. Under low pump energy, a permanent gain modulation caused by dye bleaching was generated. An index modulation of the medium caused by photodamage was induced at higher pump energy. Dualpeak DFB lasing emission indicative of the existence of the index grating was observed under these conditions.

Original languageEnglish
Pages (from-to)1415-1418
Number of pages4
JournalOptical Materials
Issue number8
Publication statusPublished - Jun 2012
Externally publishedYes


  • Distributed feedback
  • Dye laser
  • Polymer film
  • Reflection grating

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science (all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering


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