BaF3 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.582666 n_e = 1.585647	V_d = 46.46 V_e = 46.16	n_F - n_C = 0.012540 n_F' - n_C' = 0.012686	Coloring: 0.33 - 0.37 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.4614368 C2 = -0.012559687 C3 = 0.013043852 C4 = 0.0015514968 C5 = -0.00015232068 C6 = 0.000009011435

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.569250
n _s	1.572532
n _r	1.576846
n _C	1.578933
n _C'	1.579522
n _0.6328	1.580074
n _D	1.582556
n _d	1.582666
n _e	1.585647
n _F	1.591474
n _F'	1.592209
n _g	1.598567
n _h	1.604600
n _i	1.615319
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7721
P_C,A'	0.3316
P_d,C	0.2976
P_e,C	0.5353
P_g,d	1.2679
P_g,F	0.5655
P_h,g	0.4811
P_i,g	1.3358
P_C',t	0.8191
P_e,C'	0.4883
P_F',e	0.5232
P_i,F'	1.8428

transmittance: 10 mm
τ_0.33	0.027
τ_0.34	0.279
τ_0.35	0.625
τ_0.36	0.816
τ_0.37	0.912
τ_0.38	0.95
τ_0.39	0.971
τ_0.4	0.978
τ_0.42	0.985
τ_0.44	0.985
τ_0.46	0.988
τ_0.48	0.99
τ_0.5	0.99
τ_0.55	0.992
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.968

transmittance: 25 mm
τ_0.34	0.041
τ_0.35	0.309
τ_0.36	0.603
τ_0.37	0.795
τ_0.38	0.88
τ_0.39	0.93
τ_0.4	0.947
τ_0.42	0.964
τ_0.44	0.964
τ_0.46	0.971
τ_0.48	0.975
τ_0.5	0.975
τ_0.55	0.982
τ_0.6	0.989
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.923

Poisson coef.: 0.227
Rigidity: 312 Pa*10⁸
Young module: 765 Pa*10⁸
Knoop hardness: 495
Abrasion: 130

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	96