The effect of hydrostatic pressure on the fluorescence spectrum of rhodamine 6G dye in two different solutions is studied. The peak shifts to longer wavelengths with increasing pressure with a pressure coefficient of -29 and -19 cm-1/kbar for ethanol and 4:1 methanol-ethanol solvents, respectively. Possible applications of increasing the tunability of dye lasers by pressure are discussed.
© 1985 Optical Society of America
Binglin Zhang, Meera Chandrasekhar, and H. R. Chandrasekhar, "Pressure-induced shifts of the fluorescence spectrum of rhodamine 6G in solution," Appl. Opt. 24, 2779-2782 (1985)