F13 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.620045 n_e = 1.624086	V_d = 36.35 V_e = 36.09	n_F - n_C = 0.017056 n_F' - n_C' = 0.017292

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.62326 C3 = 0.0333783 C4 = -0.00954722 C5 = 0.000161377 C6 = -0.000249185 C7 = 0.00023825 C8 = 0 C9 = 0 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.584337
n _1.9701	1.589349
n _1.5296	1.595015
n _1.06	1.601879
n _t	1.602770
n _s	1.606709
n _r	1.612271
n _C	1.615037
n _C'	1.615823
n _0.6328	1.616560
n _D	1.619896
n _d	1.620045
n _e	1.624086
n _F	1.632094
n _F'	1.633115
n _g	1.642049
n _h	1.650694
n _i	1.666333
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7192
P_C,A'	0.3208
P_d,C	0.2936
P_e,C	0.5305
P_g,d	1.2900
P_g,F	0.5836
P_h,g	0.5068
P_i,g	1.4237
P_C',t	0.7652
P_e,C'	0.4844
P_F',e	0.5293
P_i,F'	1.9475

Density: 3.63 g/cm³
Poisson coef.: 0.215
Rigidity: 232.6 Pa*10⁸
Young module: 565.5 Pa*10⁸
Optical stress coef.: 2.86 1/Pa*10¹²
Abrasion: 0.7

Climatic resistance: А
Resistance to acids: I

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	70
0 ~ 30	72
20 ~ 120	74
20 ~ 300	78

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-60 ~ 20	F	4.4
-60 ~ 20	e	3.7
-60 ~ 20	D	3.3
-60 ~ 20	C	3
20 ~ 120	F	6.6
20 ~ 120	e	5.7
20 ~ 120	D	5.3
20 ~ 120	C	4.8