Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Rectangular Light intensity profile over a surface

Please login with a confirmed email address before reporting spam

Hello,

I am trying to model a laser pulse which has a rectangular shape in 2D axisymmetric domain.
I have already modeled a Guassian shape with the equation: I0*exp(-2*(r/W)^2) as the boundary condition, where: I0: peak light intensity
r radial direction (i.e. the x axis) (Y axis is light falling on the surface)
W: beam width.
How do I express rectangular shape in mathematical expression using either step function or rectangular function?
Please suggest some ideas.
Thank you,
Ishan

0 Replies Last Post 2016年12月6日 GMT-5 23:50
COMSOL Moderator

Hello Ishan Bhalerao

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.