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. 1973 Nov-Dec;77A(6):755–763. doi: 10.6028/jres.077A.046

Table 5.

Parameters for determining the change in the refractive index with temperature according to the equation, Δn = aT + bT2 + cT3

Glass a b c
Fused SiO2 8.16638E-2 1.04124E-4 −5.59781E-8
Calcium aluminate F-75 6.99293E-2 1.02150E-4 −7.81014E-8
Phosphate F-1329 4.31093E-2 6.17585E-5 −2.17470E-10
Barium borate E-1583 −1.33162E-2 4.75242E-5 1.37501E-10
Germanate F-998 7.94345E-2 1.28399E-4 −8.96982E-8