Irradiance of the surface per unit frequency or wavelength. The conditions spectral flux density or maybe more confusingly "spectral intensity" are utilised. Non-SI models of spectral irradiance consist of Jansky = 10 W⋅m⋅Hz and solar flux unit (1SFU = ten W⋅m⋅Hz). The point that light could possibly be polarized https://georgea975vdm3.wikibriefing.com/user