The dispersion relation at wavenumber
is expressed as
![]() ![]() ![]() ![]() ![]() |
(1) |
where
is the dielectric constant representing
the contribution from higher wavenumber,
Sj,
,
are the oscillator strength,
resonant wavenumber, and damping factor, respectively.
Table 1:
Forsterite oscillator parameters for temperatures from 295K to 50K.
is in cm-1 and
Sj/
,
/
are non dimensional.