stage 4, R=115

main.tex

@@ -631,8 +631,6 @@ license.
  resulting assymetry becomes smallar and the synced with the period of
  incident light variation of $G_{N_e}$ decreases.
 
- %A bookmark by Kostya
- 
  Higher excitation conditions are followed with large values of
  electric field amplitude, which lead to apperance of high EHP
  densities causing a significant change of optical properties of
@@ -660,7 +658,7 @@ license.
  this finishes spilling the NP`s volume with plasma reducing the
  asymmetry, see Fig.~\ref{plasma-grid}(d).
 
- For $R=100$~nm the evolution to during the final stage goes in a
+ For $R=100$~nm the evolution during the final stage goes in a
  similar way, with a notable exception regarding MD resonance.  As
  soon as presence of EHP incresases the absorption, it suppresses the
  MD resonance with symmetric filed pattern, thus, the asymmetry factor
@@ -669,18 +667,22 @@ license.
  mark.
  
  The last NP with $R=115$~nm shows the most complex behavior during
- the Stage~4. 
-
- as a result, the we observe the forward shifting of
- EHP density maximum. Therefore, EHP is localized in the front part of
- the NP, influencing the asymmetry factor $G_{N_e}$ in
- Fig.~\ref{time-evolution}. Approximately at the pulse peak, the
- critical electron density $N_{cr} = 5\cdot{10}^{21}$~cm$^{-3}$ for
- silicon, which corresponds to the transition to quasi-metallic state
- $Re(\epsilon) \approx 0$ and to the electron plasma resonance, is
- overcome. Further irradiation leads to a decrease in the asymmetry
- parameter down to $G_{N_e} = 0$ for higher EHP densities, as one can
- observe in Fig.~\ref{plasma-grid}(d, h, l).
+ the Stage~4. The superposition of Mie field pattern with the one from
+ Stage~1 results into the presence of two EHP spatial maxima, back and
+ front shifted. They serve to be a starting seed for EHP formation,
+ the interplay between them forms a complex behavior of the assymetry
+ factor curve. Namely, it changes the sign from negative to positive
+ and back during the last stage. This numerical result can hardly be
+ explained in a simple qualitative manner, it is too complex to
+ account all near-field interaction of incident light with two EHP
+ regions inside a single NP. However, it is intersing to note, that in
+ a similar way as it was for $R=100$~nm the increased absorption
+ should ruin ED and MD resonances, responsible for the back-shifted
+ EHP. As soon as this EHP region is quite visible on the last snapshot
+ in Fig.~\ref{plasma-grid}(l), this means that EHP seeds are
+ self-supporting.
+ 
+ %A bookmark by Kostya
 
  As the EHP acquires quasi-metallic properties at stronger excitation
  $N_e > 5\cdot{10}^{21}$~cm$^{-3}$, the EHP distribution evolves