Wavelength and penetration
30 Oct Why does penetration increase with decrease in wavelength?.
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Penetration depth - Wikipedia
Why does microwave have higher penetration than terahertz? At higher frequencies / shorter wavelengths, some of these modes of interaction become.
Microwave Detected Photoconductivity (MDP)
Description:The reason is that skin consists of a range of chromophores which have scattering and absorption coefficients which are highly wavelength dependent [ 1 — 6 ]. Scattering leads to light dispersion in the tissue and the eventual reduction in the energy density with increasing depth [ 8 ]. Using custom Monte Carlo simulation software of a multi-layered skin model, fluence distributions are produced for various non-ionising radiation combinations. The scattering properties of tissue are due to attenuation properties intrinsic to the chromophore and also to the size of the particles within the tissue which also governs the type of scattering that occurs, namely Mie or Rayleigh scattering [ 7 ]. Fluence distribution within tissue and thus the treatment efficacy depends upon the illumination geometry and wavelength. Fluence distributions were analysed using Matlab mathematical software.
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