•
Crystal structure: •
Density: 4.24
g/cm3 •
Thermal expansion coefficient: • αa = 4.43×10−6/
K • αc = 11.37×10−6/K •
Thermal conductivity coefficient: • parallel to
c-axis: 5.23
W·m−1·K−1 • perpendicular to
c-axis: 5.10 W·m−1·K−1 •
Refractive indices,
birefringence ( Δ
n =
ne -
no) and walk-off angle at 45° (ρ): • at 0.63
μm: •
ne = 2.2154 •
no = 1.9929 • Δ
n = 0.2225 •
ρ = 6.04 • at 1.30 μm: •
ne = 2.1554 •
no = 1.9500 • Δ
n = 0.2054 •
ρ= 5.72 • at 1.55 μm: •
ne = 2.1486 •
no = 1.9447 • Δ
n = 0.2039 •
ρ = 5.69 •
Sellmeier equation (
λ in μm): •
ne2=4.59905 + 0.110534/(λ2 − 0.04813) − 0.012267612
λ2 •
no2=3.77834 + 0.069736/(λ2 − 0.04724) − 0.0108133
λ2 ==See also==