AL2O3-E by Generic Birefringent

Standard Unknown Environmentally Friendly

AL2O3-E by Generic Birefringent is a standard optical glass. It transmits from 0.20 to 5.50 µm with an nd of 1.760096 and a Vd of 72.988091.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.2–5.5 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.2–5.5 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.200–5.500 µm
Optical Properties
Refractive Index (nd) 1.760096
Abbe Number (Vd) 72.988091
Dispersion Formula Sellmeier
Wavelength Range 0.2 — 5.5 µm
$$n(\lambda) = \sqrt{1 + \frac{1.50398\,\lambda^2}{\lambda^2 - 0.00548026} + \frac{0.550691\,\lambda^2}{\lambda^2 - 0.0147994} + \frac{6.59274\,\lambda^2}{\lambda^2 - 402.895}}$$
Thermal Properties
TCE -30/70°C (10-6/K) —
TCE 100/300°C (10-6/K) —
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[2.2 \times 10^{-5} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) —
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: Handbook of Optics Vol. II

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Similar Glasses (Generic Birefringent)
Glass Manufacturer nd Vd Compare
AL2O3 Generic Birefringent 1.768172 72.308589
BEO-E Generic Birefringent 1.734106 79.335058
BEO Generic Birefringent 1.718619 93.251706
LAF3 Generic Birefringent 1.604046 80.83154
LAF3-E Generic Birefringent 1.596715 81.256833
BBO Generic Birefringent 1.670737 52.593907
CALCITE Generic Birefringent 1.658643 48.541403
QUARTZ-E Generic Birefringent 1.553398 68.797763
QUARTZ Generic Birefringent 1.544296 70.132045
BBO-E Generic Birefringent 1.552518 61.321496
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