Hair Thickness Diffraction Simulation
Estimate hair diameter using laser diffraction and Babinet's principle.
Laser wavelength (nm)
Hair → screen distance (m)
Hair diameter (µm)
Screen width (mm)
Run Simulation
Estimated diameter
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First-minimum distance β
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Physics
d = λD / β
d = hair diameter
λ = laser wavelength
D = hair-to-screen distance
β = distance from the central maximum to the first minimum