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Normalized THG from circularly polarized light as a function of delay time for a fluence of . The probe volume is completely melted by and starts to resolidify at .
THG from (001) Si with circular polarization and linear polarization aligned to the ⟨110⟩ and ⟨100⟩ directions as a function of sample temperature. THG is normalized to room temperature THG with circularly polarized light.
(a) Normalized THG intensity as a function of time following a pump pulse, which is below the melt threshold. (b) Data in (a) converted to temperature; the solid and dashed lines are solutions to the heat equation assuming the initial temperature distribution to be either a step or Gaussian function, respectively.
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