A simple scheme is described for demonstrating laser generation of ($\lambda$ = 570 nm) in an ethanol solution of rhodamin 6G excited by a small N$_2$ laser LGI-21 ($P$ = 3kW, $\lambda$ = 337 nm). The solution is placed into a cell of 4--5 mm thickness with a silver or aluminum mirror and a quartz window at the ends. Excitation is produced by a beam focused by a spherical lens through the quartz window. Radiation from the dye laser leaves the cell at a small angle in the direction opposite to the exciting beam through the same lens and this produces collimated radiation which is then aimed in the desired direction by deflecting mirrors.

%0 Journal Article
%T A simple dye laser for demonstrations
%A L. A. Ageev
%I Physics-Uspekhi
%D 1981
%J Phys. Usp.
%V 24
%N 7
%P 633-634
%U https://ufn.ru/en/articles/1981/7/h/
%U https://doi.org/10.1070/PU1981v024n07ABEH004873