Chemical stabilization of laser dyes. Final report, 1 December 1984-28 February 1987

Technical Report · Thu May 07 00:00:00 EDT 1987

OSTI ID:6288697

Koch, T H

Coumarin laser dyes upon excitation degrade to produce products that absorb at the lasing wavelength. This results in attenuation of dye laser output through interference of stimulated emission. The roles of singlet oxygen and excitation intensity on dye degradation were explored. Singlet oxygen is formed but its reactions with the dye do not appear to be a major cause of dye laser output deterioration. High light intensity results in dye-sensitized, solvent oligomerization to yield materials that interfere with dye-stimulated emission. 1, 4-Diazabicyclo2,2,2octane (DABCO)inhibits this oligomerization.

• Research Organization: Colorado Univ., Boulder (USA). Dept. of Chemistry
• OSTI ID: 6288697
• Report Number(s): AD-A-180617/3/XAB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ANTICOAGULANTS
ATTENUATION
CHEMICAL REACTIONS
COUMARINS
DRUGS
DYE LASERS
DYES
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
ENERGY-LEVEL TRANSITIONS
EXCITATION
HEMATOLOGIC AGENTS
INTERFERENCE
LASER MATERIALS
LASERS
LIQUID LASERS
MASSLESS PARTICLES
MATERIALS
NONMETALS
OXYGEN
PHOTOCHEMICAL REACTIONS
PHOTONS
POLYMERIZATION
SOLVENTS
STABILIZATION