<br>The optical photon travels in the medium through steps. The step length is calculated from the probability of interaction based on <br>the physics process (absorption, scattering, ....) cross section. The process that is applied is the one that produced the minimum <br>
step length. <br><br><br><br><div class="gmail_quote">On Mon, Jan 7, 2013 at 9:35 PM, Jenny Nilsson <span dir="ltr"><<a href="mailto:jenny.nilsson@radfys.gu.se" target="_blank">jenny.nilsson@radfys.gu.se</a>></span> wrote:<br>
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<div>Hello, </div>
<div>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. <br>
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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? </div>
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<div>Best regards</div>
<div>Jenny </div><br>
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