TF2 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.672680 n_e = 1.677618	V_d = 32.23 V_e = 31.99	n_F - n_C = 0.020869 n_F' - n_C' = 0.021180

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.67902 C3 = 0.0413903 C4 = -0.00925127 C5 = 0.000748008 C6 = -0.000342282 C7 = 0.000397052 C8 = -0.0000368633 C9 = 0.000118531 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.632821
n _1.9701	1.637843
n _1.5296	1.643620
n _1.06	1.651072
n _t	1.652084
n _s	1.656652
n _r	1.663268
n _C	1.666601
n _C'	1.667550
n _0.6328	1.668444
n _D	1.672498
n _d	1.672680
n _e	1.677618
n _F	1.687470
n _F'	1.688731
n _g	1.699828
n _h	1.710667
n _i	1.730616
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6956
P_C,A'	0.3147
P_d,C	0.2913
P_e,C	0.5279
P_g,d	1.3008
P_g,F	0.5921
P_h,g	0.5193
P_i,g	1.4753
P_C',t	0.7411
P_e,C'	0.4824
P_F',e	0.5325
P_i,F'	2.0070

Density: 4.09 g/cm³
Poisson coef.: 0.227
Rigidity: 224 Pa*10⁸
Young module: 549.8 Pa*10⁸
Optical stress coef.: 2.24 1/Pa*10¹²
Abrasion: 0.6

Climatic resistance: А
Resistance to acids: II

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	74
0 ~ 30	75
20 ~ 120	78
20 ~ 300	81

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-60 ~ 20	F	5.5
-60 ~ 20	e	4.2
-60 ~ 20	D	3.7
-60 ~ 20	C	3.2
20 ~ 120	F	7.9
20 ~ 120	e	6.6
20 ~ 120	D	6.1
20 ~ 120	C	5.5