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@@ -412,12 +412,12 @@ $\alpha = 21.2$~cm$^2$/J is the avalanche ionization coefficient
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\cite{Pronko1998} at the wavelength $800$~nm in air. As we have noted,
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\cite{Pronko1998} at the wavelength $800$~nm in air. As we have noted,
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free carrier diffusion is neglected during and shortly after the laser
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free carrier diffusion is neglected during and shortly after the laser
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excitation \cite{Van1987, Sokolowski2000}. In particular, from the
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excitation \cite{Van1987, Sokolowski2000}. In particular, from the
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-Einstein formula $D = k_B T_e \tau/m^* \approx (1$--$2)\cdot{10}^{-3}$ m$^2$/s
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+Einstein formula $D = k_B T_e \tau/m^* \approx (1$--$\,2)\cdot{10}^{-3}$ m$^2$/s
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($k_B$ is the Boltzmann constant, $T_e$ is the electron temperature,
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($k_B$ is the Boltzmann constant, $T_e$ is the electron temperature,
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$\tau=1$~\textit{fs} is the collision time, $m^* = 0.18 m_e$ is the effective
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$\tau=1$~\textit{fs} is the collision time, $m^* = 0.18 m_e$ is the effective
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mass), where $T_e \approx 2*{10}^4$ K for $N_e$ close to $N_{cr}$ \cite{Ramer2014}. It
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mass), where $T_e \approx 2*{10}^4$ K for $N_e$ close to $N_{cr}$ \cite{Ramer2014}. It
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means that during the pulse duration ($\approx 50$~\textit{fs}) the diffusion
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means that during the pulse duration ($\approx 50$~\textit{fs}) the diffusion
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-length will be around 5--10~nm for $N_e$ close to $N_{cr}$.
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+length will be around 5$\,$--10~nm for $N_e$ close to $N_{cr}$.
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\begin{figure}[ht!]
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\begin{figure}[ht!]
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\centering
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\centering
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@@ -570,7 +570,7 @@ license.
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20~\textit{fs} for the MD, and about 100~\textit{fs} for the MQ.
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20~\textit{fs} for the MD, and about 100~\textit{fs} for the MQ.
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According to these considerations, after few optical cycles taking
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According to these considerations, after few optical cycles taking
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place on a 10~\textit{fs} scale it results in the excitation of the
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place on a 10~\textit{fs} scale it results in the excitation of the
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- low-\textit{Q} ED resonance, which dominates MD and МQ independently
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+ low-\textit{Q} ED resonance, which dominates MD and MQ independently
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on the exact size of NPs. Moreover, during the first optical cycle
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on the exact size of NPs. Moreover, during the first optical cycle
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there is no multiple mode structure inside of NP, which results into
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there is no multiple mode structure inside of NP, which results into
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a very similar field distribution for all size of NP under
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a very similar field distribution for all size of NP under
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