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We study forward stimulated Raman emission from weakly fluorescent dye4'-diethylamino-N-methyl-4-stilbazolium tosylate (DEST) in 1,2,dichloroethanesolution excited by a 28 ps, 532 nm Nd: YAG laser. Neat 1, 2, dichloroethaneemits the first Stokes line at 631 nm with a spectral width of 1.6 nmcorresponding to a Raman shift of 2956 per cm. We observe reduction of spectralwidth with the addition of DEST in 1, 2, dichloroethane solution. The singlepass conversion efficiency for forward Raman emission is as high as 20 percentin a 1 cm path length sample. The pulse duration of forward stimulated Ramanemission measured by a third order autocorrelation technique is 10 ps in neat1, 2, dichloroethane, whereas it is nearly 3 ps for 0.04 mM of DEST solution.Comment: 10 pages, 5 figure

Amplified spontaneous emission enhanced forward stimulated Raman scattering in dye solutions