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Optical constants of OHARA - PHM (Phosphate, medium-index)
S-PHM53

Wavelength: µm
 (0.31 – 2.4)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.09775423λ^2}{λ^2-0.01233694}+\frac{0.434816432λ^2}{λ^2+0.000372522903}+\frac{1.13894976λ^2}{λ^2-124.276984}$$

Comments

Recommended

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

Additional information

n_is_absolute: false
λ_is_vacuum: false
temperature: 25.0 °C
coefficients_of_thermal_dispersion: -9.57e-06 1.38e-08 -6.4e-12 4.8e-07 8.06e-10 0.131
n_d: 1.603001
V_d: 65.443648
glass_code: 603655
glass_status: standard
density: 3.51 g/cm3
coefficient_of_thermal_expansion_1: 9.3e-06 K-1
coefficient_of_thermal_expansion_2: 1.09e-05 K-1
ΔP_gF: 0.0045
climatic_resistance: 1.0
acid_resistance: 51.0
phosphate_resistance: 4.0

References

1) OHARA optical glass datasheets 2015-12-01
2) OHARA Zemax catalog 2015-12-01

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