[Gate-users] Absorption length in optical transport

[Vesna Cuplov]

The optical photon travels in the medium through steps. The step length is
calculated from the probability of interaction based on
the physics process (absorption, scattering, ....) cross section. The
process that is applied is the one that produced the minimum
step length.



On Mon, Jan 7, 2013 at 9:35 PM, Jenny Nilsson <jenny.nilsson at radfys.gu.se>wrote:

>  Hello,
> Yes I know. But if, for example, the absorption length is 300 cm then all
> optical photons will not travel 300 cm before being absorbed, the beam
> intensity will be 1/e after one absorption length.
>
> What I'm interested in is when in the calculations is the distance an
> optical photon travels determined. Is the distance sampled from a
> probability distribution before the actual transport begins?
>
>  Best regards
> Jenny
>
>
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