IRG11 by Generic IR

Standard Unknown Environmentally Friendly

IRG11 by Generic IR is a standard optical glass. It transmits from 0.48 to 4.59 µm with an nd of 1.680932 and a Vd of 44.434326. It has medium thermal expansion (CTE of 8.2×10⁻⁶/K).

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.48–4.586 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.48–4.586 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.480–4.586 µm
Optical Properties
Refractive Index (nd) 1.680932
Abbe Number (Vd) 44.434326
Dispersion Formula Herzberger
Wavelength Range 0.48 — 4.586 µm
$$L = \frac{1}{\lambda^2 - 0.028} n(\lambda) = 1.66049 + 0.00697543\,L - 7.60244 \times 10^{-5}\,L^2 - 0.00228659\,\lambda^2 - 1.13505 \times 10^{-5}\,\lambda^4 - 4.38637 \times 10^{-9}\,\lambda^6$$
Thermal Properties
TCE -30/70°C (10-6/K) 8.2
TCE 100/300°C (10-6/K) —
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.12
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Notes

source: Schott Spec Sheet

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
K-BaFn1 Sumita 1.6825 44.5
BAFN1 Sumita 1.6825 44.5
BAF50 Schott 1.682726 44.503507
ZBAF51 CDGM 1.682726 44.528543
BAF22 Hoya 1.682496 44.671672
BAF20 Hoya 1.685777 43.901833
BAF13 Hoya 1.668916 44.911265
BAF13 Schott 1.668919 44.961828
BAH13 Ohara 1.668921 44.987354
BAF13 Sumita 1.66892 45.0
Similar Glasses (Generic IR)
Glass Manufacturer nd Vd Compare
CALCITE Generic IR 1.658643 48.541403
GEO2 Generic IR 1.608459 41.728763
CSBR Generic IR 1.69706 34.108015
MGO Generic IR 1.737505 53.505455
IRG7 Generic IR 1.564424 43.736647
SPINEL Generic IR 1.716226 60.607355
IRGN6 Generic IR 1.589096 56.33564
PBF2 Generic IR 1.766591 28.390315
ALON Generic IR 1.788917 58.204971
KBR Generic IR 1.559967 31.977241
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