Evidence for optical bistability in millimeter gas cells

Harrison, R. G.; Al-Saidi, I. A.; Cummins, E. J. D.; Firth, W. J.
March 1985
Applied Physics Letters;3/15/1985, Vol. 46 Issue 6, p532
Academic Journal
Optical bistability, limiting, and other pulse shaping effects are observed in compact Fabry–Perot resonators containing SF6. The gas, in cells as short as 1 mm, is excited with smooth 100-ns transversely excited atmospheric CO2 laser pulses. The optical nonlinearity responsible for these effects is well described by a four-state kinetic model with unsaturable excited state absorption.


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