Table 6: Variation of average refractive index with temperature for three wavelengths.

(K)Average RI (404 nm)Average RI (546 nm)Average RI (578 nm)

3431.489681.47931.4728
3331.491421.480361.47472
3231.495521.482221.4768
3131.496141.483461.47634
3031.500561.485541.48184