Laser pulse nonlinear transmission
measurements through saturable absorbers of known absorption parameters allow
the measurement of their energy density. On the other hand, nonlinear transmission
measurements of laser pulses of known energy density through absorbing media allow
their absorption parameter determination. The peak energy density w0P of second harmonic pulses
of a mode-locked titanium sapphire laser at wavelength λP = 400 nm is determined by nonlinear energy transmission measurement TE through the dye ADS084BE
(1,4-bis(9-ethyl-3-car-bazovinylene)-2-methoxy-5-(2’-ethyl-hexyloxy)-benzene)in tetrahydrofuran. TE(w0P)
calibration curves are calculated for
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