7-amino coumarin dyes for flashlamp-pumped dye lasers

Technical Report · Fri Sep 03 04:00:00 EDT 1976

OSTI ID:7223189

Hammond, P R; Schimitschek, E J; Trias, J A

The patent application relates to lasers and more particularly to organic dye lasers and to the use of certain nitrogen-containing dyes capable of lasing when properly excited. The dyes discussed are derivatives of 7-amino coumarin unsubstituted in the 4 position. It has improved photochemical stability but lases well in the blue-green region. The amino group may carry methyl or ethyl groups, or may be part of a heterocyclic ring. 7-Diethyl amino coumarin and 7-dimethyl amino coumarin are especially efficient and stable. This type of compound will lase easily when properly excited.

• Research Organization: Environmental Protection Agency, Denver, CO (USA)
• OSTI ID: 7223189
• Report Number(s): AD-A-003166
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
COUMARIN
DYE LASERS
DYES
ENERGY-LEVEL TRANSITIONS
ESTERS
EXCITATION
HETEROCYCLIC COMPOUNDS
LACTONES
LASERS
MATERIALS
OPTICAL PUMPING
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PYRANS