Quasi-Aromatic Heterocyclics as Laser Dyes

Abstract

Superior laser dyes were recently discovered in the quasi-aromatic families of syn-dioxabimanes and pyrromethene-BF2 complexes. The representative new dye mu-bis-(carboethoxy) methylene-syn-(methylene, methyl) bimane lased at 507 nm with 50% greater efficiency than was obtained with Coumarin 30. A similar determination showed 4, 4-difluoro-1,3,5,7,8-pentamethyl-4-bora-3a,4a-diaza-s- indacene to lase at 546 nm with about 300% greater efficiency than was obtained from Coumarin 545. These quasi-aromatic systems are readily available and offer desirable properties of stability (photo, thermal, and chemical), solubility, and diminished triplet-triplet absorption in the lasing spectral region. Selected spectroscopic and lasing properties of these new laser dyes are presented. Keywords: Laser dyes; Dye laser; Quasi aromatic heterocyclics; Heterocycles.

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Document Details

Document Type
Technical Report
Publication Date
Apr 19, 1989
Accession Number
ADA207134

Entities

People

  • Joseph H. Boyer
  • Theodore G. Pavlopoulos

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Alcohols
  • Chemical Synthesis
  • Chemistry
  • Coumarins
  • Dye Lasers
  • Dyes
  • Efficiency
  • Laser Dyes
  • Lasers
  • Liquid Dye Lasers
  • Liquid Lasers
  • Methanols
  • Methylenes
  • Military Research
  • Organic Compounds

Readers

  • Analytical Chemistry
  • Chemistry (specifically Chemical Fluorescence)
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers