Abstract
The power dependence of an induced, nonlinear thermal-grating signal for different dye solutions is measured using a polarization-spectroscopy scheme. It is shown that the dependence is cubic at low power, but it becomes exponential when the light power is increased. The results are interpreted as the optical amplification of the thermal-grating signal due to positive values of the electronic nonlinear absorption.
© 1988 Optical Society of America
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A. Marcano O. and R. Medina, "Optical amplification of a thermal-grating polarization-spectroscopy signal: errata," J. Opt. Soc. Am. B 6, 267-267 (1989)https://opg.optica.org/josab/abstract.cfm?uri=josab-6-2-267
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