RefractiveIndex.INFO

Refractive index database


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Optical constants of (C5H8O2)n (Poly(methyl methacrylate), PMMA)
Beadie et al. 2015: n 0.42-1.62 µm

Wavelength: µm
 (0.42 – 1.62)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula

$$n^2=2.1778+6.1209\text{×}10^{-3}λ^{2}-1.5004\text{×}10^{-3}λ^{4}+2.3678\text{×}10^{-2}λ^{-2}-4.2137\text{×}10^{-3}λ^{-4}+7.3417\text{×}10^{-4}λ^{-6}-4.5042\text{×}10^{-5}λ^{-8}$$

Comments

20.1 °C. Absolute accuracy < 2×10-4.

References

G. Beadie, M. Brindza, R. A. Flynn, A. Rosenberg, and J. S. Shirk. Refractive index measurements of poly(methyl methacrylate) (PMMA) from 0.4-1.6 μm, Appl. Opt. 54, F139-F143 (2015)

Data

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

INFO

Poly(methyl methacrylate), (C5H8O2)n

Other names

  • Poly(methyl methacrylate)
  • PMMA
  • Acrylic glass

Trademarks

  • Plexiglas
  • Vitroflex
  • Limacryl
  • R-Cast
  • Per-Clax
  • Perspex
  • Plazcryl
  • Acrylex
  • Acrylite
  • Acrylplast
  • Altuglas
  • Polycast
  • Oroglass
  • Lucite

External links