Template talk:Relative permittivity table

High frequency permittivity

So.... is there a table out there somewhere for high-frequency permittivity (i.e. $\varepsilon _{\infty }$ which means we take $\varepsilon (\omega )$ at optical frequencies)? This would be super-useful. I haven't found one yet. I'll probably create one. -- Blue.painting (talk) 00:18, 1 June 2019 (UTC)