Optical constants of OHARA - NSL (Niobosilicate, low-index)
S-NSL5
Wavelength:
µm
(0.32–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.04574577λ^2}{λ^2-0.0058523228}+\frac{0.239613026λ^2}{λ^2-0.0236858752}+\frac{1.1590685λ^2}{λ^2-131.329061}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 25.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: -1.14e-06 1.21e-08 -4.3e-11 3.41e-07 5.9e-10 0.272 nd: 1.522494 Vd: 59.835417 glass_code: 522598 density: 2.49 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 8.2e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 9.5e-06 K-1 dPgF: -0.0007 climatic_resistance: 1.0 acid_resistance: 1.0 phosphate_resistance: 1.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets