deletions | additions       diff --git a/Dependance with beam power.tex b/Dependance with beam power.tex  index 477ee35..060102b 100644  --- a/Dependance with beam power.tex  +++ b/Dependance with beam power.tex 
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%Shear wave amplitude has been shown to be linearly dependent on laser beam power in thermoelastic and ablative regime. However, at higher amplitude (about 10$^9$ W.cm$^{-2}$ in metals \cite{scruby1990laser}), a plasma occurs and lead to a non-linear amplitude of the displacement with laser energy.  The dependence of the generated shear wave amplitude with laser energy has been investigated by increasing the laser beam energy from 10 to 200 mJ. To decrease noise influence, amplitude have been averaged over four experiments for each energy level. Successive energy levels were randomly chosen to avoid any time-related bias and impact location was changed to avoid local degradation of the medium. Shear wave amplitude were measured between 0 and 10 mm of the medium surface, an arbitrary location where shear waves had high amplitudes. Resulting amplitude is measurements are  illustrated in Figure \ref{Figure4}-(A). A linear dependence is observed, with a threshold at low amplitude due to ambient noise.