BAH13 by Ohara

Obsolete Unknown Environmentally Dangerous
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.3–2.4 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.3–2.4 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.350–0.900 µm
Optical Properties
Refractive Index (nd) 1.668921
Abbe Number (Vd) 44.987354
Dispersion Formula Schott
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{2.72291 - 0.00993699\,\lambda^2 + 0.0209238\,\lambda^{-2} + 0.000651367\,\lambda^{-4} - 1.93882 \times 10^{-5}\,\lambda^{-6} + 3.11196 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 7.6
TCE 100/300°C (10-6/K) 8.8
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[2.589 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 4.0
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance 53
Alkali Resistance —
Phosphate Resistance 3
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd
BAF13 Sumita 1.66892 45.0
BAF13 Schott 1.668919 44.961828
BAF13 Hoya 1.668916 44.911265
IRG11 Generic IR 1.680932 44.434326
BAF22 Hoya 1.682496 44.671672
K-BaFn1 Sumita 1.6825 44.5
BAFN1 Sumita 1.6825 44.5
ZBAF51 CDGM 1.682726 44.528543
BAF50 Schott 1.682726 44.503507
ATF4 Hoya 1.653757 44.723072
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
S-BAH10 Ohara 1.670029 47.230916
BAH10 Ohara 1.670029 47.253429
BAH26 Ohara 1.667551 41.927521
BAH11 Ohara 1.666718 48.317266
S-BAH11 Ohara 1.666718 48.325247
BAM12 Ohara 1.6393 44.878032
S-BAM12 Ohara 1.6393 44.872804
BAM9 Ohara 1.643279 47.850606
S-BAH54 Ohara 1.695 42.167111
BAH54 Ohara 1.695 42.167111
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