Two plastic cuvettes, filled with different fluorescent dyes, are simultaneously excited by lasers operating at two different wavelengths. The left-hand cuvette, filled with Hoechst33342, shows greenish fluorescence with 375-nm laser excitation; the right-hand cuvette, with propidium iodide, fluoresces red with 488-nm excitation.
—Tatevik Chalyan, B-PHOT Brussels Photonics Team, Vrije Universiteit Brussel, Belgium
01 Apr 2020