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Laser heating picosecond pulse with reflection

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Bonjour à tous,
I am trying to model an experiment :
-A picosecond laser pulse hit a sample of water (0.8mm), which is on a mirror made of silicon
-The laser beam heats the volume then it is reflected by the mirror
I modeled the heat transfer by using the heat equation and the heat source is calculated thanks to the beer's law (by using a general form PDE) but I don't know how to model the reflection of the silicon so the heat source is lower as it should be. So if anyone have an idea how to model it ? Which boundary etc.
Thanks a lot.

0 Replies Last Post Feb 17, 2017, 7:03 a.m. EST
COMSOL Moderator

Hello Damien Le Bideau

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