. "refractive index, ''n'', and extinction coefficient, ''k''" . "refractive indexes" . "refractive index" . . "Refractive index" . "refractivity" . "non-linear refractive index" . "index of refraction" . . "speed of light in that medium" . . . . . . . . . "homogeneity" . "Extra-High Refractive index" . . . . . . "concept used in optics" . . . "complex refractive index" . . "negative refractive index" . . . "refraction indices" . "refractive index or IOR" . . "indices of refraction" . "refractive indices" . . . . "Refractive_index#Complex_refractive_index" . "Refractive index#Refractivity" . . . "Index of Refraction" . . "group refractive index" . "High-Refractive index" . "refraction coefficient" . . "high-index" . "refractive indices" . . . . . "extinction coefficient" . . . . "index" . . . . "slower in water than in vacuum" . . "Refractive index#Complex index of refraction and absorption" . . "Refractive index#Complex refractive index" . "Refractive indices" . . "extinction coefficients" . "rarer medium" . "refractive Indices" . "refractive index, and extinction coefficient" . . . . . "refractive-index" . "index matching" . . "Refractive Index" . . . "Refractive_index#Negative_refractive_index" . "Index of refraction" . . "positive index" . "group index" . . "refraction index" . . . "refractive index" . "optical index" . "optically denser" . . . . "refracting" . . "n" . . . . "effective refractive index" . "imaginary part of the refractive index" . "negative index" . . "Extinction coefficient" . . . "extinction" . . . "Refractive index" . . . . "Refractive index#Group index" . "Refractive
index(es)" . . . . "refracting objects" .