|Message: Re: Real and Imaginary Parts of the index of Refraction.||Not Logged In (login)|
Click on the Forum title, e.g. on the "Forums by Category" page, to read a sequence of postings to the Forum and its threads all in one page. If you are only interested in one thread or the thread following a specific posting, click the thread or the posting, which takes you to a smaller page, which contains only the part you are interested in and may be easier to navigate.
Messages are "chained" if there are only replies at the first level, i.e. 1/1.html, 1/1/1.html etc. In case of "chained" messages the message number is replaced by the icon and there is no indentation.
Inline: Display the subject line only or also the text of the posting(s); for the choice "All" the "Outline" choices are switched off.
|1||0||1||no text / full text of posting|
|2||1||All||text for level 1 only / text for All postings|
Outline: Choose the depth of the posting thread, successive toggle controls provide increasing detail.
|1||2||1||2 levels / 1 level (original posting)|
|2||3||2||3 levels / 2 levels|
|3||3||All||3 levels / all levels (all postings)|
The program (source/processes/optical/src/G4OpBoundaryProcess.cc) has two stages when you set a dielectric_metal surface and provide both Re and Im index of refraction. The probability of reflection (theReflectivity) is calculated in the routine:
G4OpBoundaryProcess::GetReflectivity(G4double E1_perp,G4double E1_parl,G4double incidentangle,G4double RealRindex,G4double ImaginaryRindex)
from the arguments provided.
This probability is later used in DielectricMetal() to sample reflection/absorption. The actual angle of reflection is then calculated in the method DoReflection. If you provide 'glisur' or 'polished' the angle of reflection will be the angle of incidence. If you choose 'unified' and you have provided the probabilities of the various types of possible reflections in the UNIFIED model, the reflection angle is calculated accordingly.
Although, the program flow allows you to specify 'unified', I would argue on physics grounds, that once you give ReR, ImR, and an incident angle (with respect to a Facet Normal) and the reflectivity is calculated from that information, you are no longer free to choose the reflection angle as is allowed in the UNIFIED model. I would argue you should choose in this case, 'glisur' and either 'polished' or 'ground'.
|Inline Depth:||Outline Depth:||Add message:|