The variation of refractive index, n, with wavelength for fused silica is given by

where is expressed in μm.
(a) Make a graph of n versus λ with points at the following wavelengths:
0.2, 0.4, 0.6, 0.8, 1, 2, 3, 4, 5, and 6 μm.
(b) The ability of a prism to spread apart (disperse) neighboring wavelengths increases as the slope dn/dλ increases. Is the dispersion of fused silica greater for blue light or red light?

Transcribed Image Text:

(0.696 166 3)* 0.407 942 6) _ (0.1 16 24 1 4 )2 x-(0.068 404 3 )2 (0897 479 4 א λ. (9.896 161 )2