Abstract
In a number of early experiments, attempts to observe optical bistability in saturable absorbing dyes were unsuccessful. We report here observation of optical bistability in the dye BDN, which has also been used recently to observe degenerate four-wave mixing.1 We show that the reason for bistability in BDN, however, lies not in its saturable absorption but in a nonlinear refractive index which occurs from nonresonant dispersion.
© 1983 Optical Society of America
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