Optical
|
Refractive Index at ne |
1.51872 |
|
Refractive Index at nF' |
1.52283 |
|
Thermal Coefficient of Refractive Index at 0.546 microns for ±20 ℃ |
2.8 x 10-6 |
|
Transmission Range, microns |
0.35 - 2.0 |
Thermal
|
Thermal Linear Expansion, ℃-1 for -30/+70 ℃ |
7.1 x 10-6 |
|
Thermal Conductivity, W/(m * ℃) |
1.114 |
|
Specific Heat Capacity, J/(kg * ℃) |
0.858 x 103 |
|
Melting Point, ℃ |
559 |
Mechanical
|
Density, g/cm3 at 20 ℃ |
2.51 |
|
Young Modulus (E), Pa |
8.1 x 1010 |
|
Poisson Ratio |
0.206 |
Ref. Index vs. Wavelength λ
|
Wavelength, Microns |
Refractive Index |
|
0.365 |
1.53626 |
|
0.4047 |
1.53024 |
|
0.4358 |
1.52669 |
|
0.4800 |
1.52283 |
|
0.4861 |
1.52238 |
|
0.5461 |
1.51871 |
|
0.5876 |
1.51680 |
|
0.5893 |
1.51673 |
|
0.6328 |
1.51509 |
|
0.6438 |
1.51472 |
|
0.6563 |
1.51432 |
|
0.7065 |
1.51289 |
|
0.8521 |
1.50981 |
|
1.0140 |
1.50731 |
|
1.0600 |
1.50669 |
|
1.5296 |
1.50094 |
|
1.9700 |
1.49500 |
|
2.3254 |
1.48929 |
Internal Transmittanceτi (λ) vs. Wavelength λ
|
Wavelength, Microns |
Internal Transmittance for 5mm |
|
0.310 |
0.59 |
|
0.320 |
0.81 |
|
0.350 |
0.986 |
|
0.365 |
0.994 |
|
0.370 |
0.995 |
|
0.380 |
0.996 |
|
0.390 |
0.998 |
|
0.400 |
0.998 |
|
0.420 |
0.998 |
|
0.460 |
0.999 |
|
0.500 |
0.999 |
|
0.700 |
0.999 |
|
1.060 |
0.999 |
|
1.530 |
0.997 |
|
1.970 |
0.968 |
|
2.325 |
0.89 |
Custom sizes and specifications are available on request.
