K8 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.516368 n_e = 1.518291	V_d = 64.07 V_e = 63.86	n_F - n_C = 0.008058 n_F' - n_C' = 0.008115

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.51109 C3 = 0.0144373 C4 = -0.0116089 C5 = -0.00102851 C6 = -0.00032979 C7 = 0.0000361798 C8 = 0 C9 = 0 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.488734
n _1.9701	1.494452
n _1.5296	1.500433
n _1.06	1.506247
n _t	1.506870
n _s	1.509370
n _r	1.512460
n _C	1.513890
n _C'	1.514287
n _0.6328	1.514657
n _D	1.516296
n _d	1.516368
n _e	1.518291
n _F	1.521949
n _F'	1.522402
n _g	1.526261
n _h	1.529814
n _i	1.535813
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8711
P_C,A'	0.3583
P_d,C	0.3074
P_e,C	0.5461
P_g,d	1.2275
P_g,F	0.5350
P_h,g	0.4408
P_i,g	1.1852
P_C',t	0.9203
P_e,C'	0.4968
P_F',e	0.5101
P_i,F'	1.6640

Density: 2.52 g/cm³
Poisson coef.: 0.209
Rigidity: 333.6 Pa*10⁸
Young module: 806.5 Pa*10⁸
Optical stress coef.: 2.7 1/Pa*10¹²
Abrasion: 1

Climatic resistance: А
Resistance to acids: I

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	68
0 ~ 30	71
20 ~ 120	76
20 ~ 300	84

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-60 ~ 20	F	0.9
-60 ~ 20	e	0.6
-60 ~ 20	D	0.5
-60 ~ 20	C	0.3
20 ~ 120	F	2.4
20 ~ 120	e	2.1
20 ~ 120	D	2
20 ~ 120	C	1.8