Problem 1: Using the dispersion formula (wavelength in microns) for SiO2 and BK? glasses below, calculate and overlay plots for the refractive index and group index over the wavelength range of 0.4-1.6 microns (e.g. in 100nm steps). Over what wavelengths is the behavior normal or anomalous dispersion? Estimate the resonance wavelengths from the dispersion formula for each glass. Si 0 2 2 1 0.6961663)2 k 04079426)2 9 0.9974794)2 I n )2 0.06840432 A2 0.11624142 )2 9.6961612 BK7_ 2 103961212)2 0231792344)2 101046945)2 - n 1 = + + A2 000600069867 )9 00200179144 )9 103.560653