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Thanks a lot Looks like indeed quite complicated matter Recently have been envolved in certain project that combines LED/laser beaming into water and came across the graph of wavelengths absorption by water per 1/m, so got curious how the absorption influence the amount of energy reflected off...

Thanks Perhaps I did not asked clearly enough, trying to rephrase.. I meant the power of reflected energy at different wavelengths when directed at the same angle The deep IP and UV are absorbed heavily by water, however the blue and green penetrates quite well (which means they are much less...

Greeting all It is known that water absorbs IR and UV (at various levels depending on actual wavelength). Would it be appropriate to assume that the off-surface reflection will also be weakened in terms of reflected energy ? Or, alternatively, if using wavelength that is less absorbed...