Dyestuff laser

Details Dyestuff laser Dyestuff laser

1978-01-03

1981-06-16

Larkins, William D.

Oscillators

Molecular or particle resonant type

25230117, H01S 320

Patent

active

042740622

ABSTRACT:
Laser light in the wavelength range of 400 - 480 Nm is obtained with a dyestuff laser containing a dyestuff of the general formula ##STR1## wherein E denotes one of the radicals ##STR2## R.sub.1 -R.sub.4 independently of one another denote hydrogen, alkyl, trifluoromethyl, alkoxy, aralkoxy, halogen, alkenyloxy, the carboxyl, cyano, alkylsulphone, arylsulphone, carboxamide or sulphonamide group or the carboxylic acid ester group, or R.sub.1 and R.sub.2, or R.sub.3 and R.sub.4, conjointly represent a fused benzene ring and m and n independently of one another denote 0, 1 or 2, with the proviso that the radical E contains at least one sulphonic acid group if m and n represent 0,
and wherein

REFERENCES:
patent: 3984399 (1976-10-01), Weber et al.
patent: 4072911 (1978-02-01), Hartig et al.
Majewski et al., "Laser Properties . . . ", Optics Communications, vol. 18, No. 3, Aug. 1976, pp. 255-259.
F. P. Schaefer, ed: Dye Lasers (Springer-Verlag, N.Y. & Heidelberg, 1973), pp. 180-181, 262-263, 265.

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