Referring to the previous problem, realize that there is a region between each pair of absorption bands for which the Cauchy Equation (with a new set of constants) works fairly well. Examine Fig. 3.41: what can you say about the various values of C₁as ω decreases across the spectrum? Dropping all but the first two terms, use Fig. 3.40 to determine approximate values for C₁and C₂for borosilicate crown glass in the visible.

Fig 3.40

Fig 3.41

Transcribed Image Text:

Dense flint glass 1.7 1.6 Light flint glass Crystal quartz 1.5 Borosilicate crown glass Acrylic plastic Vitreous quartz 1.45 200 800 1000 400 600 Wavelength A (nm) Index of refraction n VKE W01 W02 W03 Infrared Visible Ultraviolet Х-гау