Lithium Niobate

Refractive Index: 1.9887–2.2135
Abbe Number: 20.5–30.8
Crystal System: Uniaxial
Formation: Artificial
Dispersion Data: Measured (published fit)
Fits: 1

Refraction Fits

Fit #1

Sellmeier

$n_{ω}$ ordinary

n_{ω}

= 1.9887

V_{ω}

= 30.8

n_{ω}^{2} = 1 + \frac{2.6734 λ ^{2}}{λ ^{2} - 0.01764} + \frac{0.1227 λ ^{2}}{λ ^{2} - 0.05914} + \frac{12.614 λ ^{2}}{λ ^{2} - 4.746 e + 2}

$n_{ε}$ extraordinary

n_{ε}

= 2.2135

V_{ε}

= 20.5

n_{ε}^{2} = 1 + \frac{2.9804 λ ^{2}}{λ ^{2} - 0.02047} + \frac{0.5981 λ ^{2}}{λ ^{2} - 0.0666} + \frac{8.9543 λ ^{2}}{λ ^{2} - 4.161 e + 2}