Figure 4.
Fourier spectrum (a,b) and absorbance (c) of the n-Si and p-Si THz signals in the frequency ranges ν = [0.0, 3.0] (a,с); [3.0, 4.0] THz (b); absorbance of monocrystalline silicon in the frequency range ν = [0.0, 3.0] THz (d).
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