METR 415/715. Wednesday February 6 2013. Imaginary part of index of refraction. When n i is non-zero, absorption of an EM wave occurs as it passes through a medium. n i is sometimes referred to as the absorption index n i depends on the wavelength
Wednesday February 6 2013
t(x) = e-1 or approximately 37%
• Check Figure 4.2 on page 79 for water and ice
• How does that influence color of pools water? Light penetration into the ocean?