Molecular engineering and photostability of laser dyes within sol-gel hosts

T. Suratwala, K. Davidson, Z. Gardlund, Donald R Uhlmann, S. Bonilla, Nasser N Peyghambarian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

22 Scopus citations

Abstract

The use of a solid-state dye laser for commercial applications has been limited largely by the poor photostability of the gain medium. Techniques are examined to improve the photostability of Coumarin and Pyrromethene-BF2 567 (PM-567) laser dyes within xerogel and Polyceram hosts synthesized by sol-gel processing. The photochemical mechanisms by which laser dyes degrade are discussed and determined specifically for PM-567. PM-567 was determined to degrade both by photo-oxidation and acid degradation. Techniques for improving photostability are described from a molecular engineering perspective. These techniques include: covalently attaching the laser dye to the host; controlling the chemical environment of the dye; increasing dye caging by increasing the SiO2 content; removing porosity from the host; and incorporating additives such as hindered amine light stabilizers to minimize photodegradation.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsR. Scheps
Pages141-152
Number of pages12
Volume2986
DOIs
Publication statusPublished - 1997
EventSolid State Lasers VI - San Jose, CA, United States
Duration: Feb 10 1997Feb 11 1997

Other

OtherSolid State Lasers VI
CountryUnited States
CitySan Jose, CA
Period2/10/972/11/97

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Keywords

  • Antioxidants
  • Photostability
  • Polycerams
  • Polydimethylsiloxa ne
  • Porosity
  • Pyrromethene-BF 567
  • Sol-Gel
  • Solid-State Dye Laser

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Suratwala, T., Davidson, K., Gardlund, Z., Uhlmann, D. R., Bonilla, S., & Peyghambarian, N. N. (1997). Molecular engineering and photostability of laser dyes within sol-gel hosts. In R. Scheps (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2986, pp. 141-152) https://doi.org/10.1117/12.269991