Menu

Discussion Forum

New Discussion
Filtra

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.

What is the difference between surface integration and surface average

Posted 19 ott 2017, 15:48 GMT-4 4 Replies

Ahmad DArweesh
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Please, I have a question? I am calculating the electric field in GaAs which has a gold nanostructure on the top. I want to know what is the difference between using surface integration and surface average. When I use both I get diefferent results and I really confused which one should I use to get the real values of electric field in the GaAs.

Thanks, Ahmad,

4 Replies Last Post 19 ott 2017, 17:57 GMT-4
Jeff Hiller COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 7 years ago 19 ott 2017, 15:51 GMT-4

The surface average is the integral of the quantity divided by the surface area over which it is integrated.

Jeff

-------------------
Jeff Hiller
The surface average is the integral of the quantity divided by the surface area over which it is integrated. Jeff
Ahmad DArweesh
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 7 years ago 19 ott 2017, 16:35 GMT-4

Thanks, Jeff for your response. I just want to clarify something. I want to know which one should I use in my case cz I got the different trend and I do not know which one is the right one.

Thanks, Jeff for your response. I just want to clarify something. I want to know which one should I use in my case cz I got the different trend and I do not know which one is the right one.
Jeff Hiller COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 7 years ago 19 ott 2017, 17:43 GMT-4

Can you clarify what it is that you are trying to get out of that simulation and how either the average or integral comes in?

Jeff

-------------------
Jeff Hiller
Can you clarify what it is that you are trying to get out of that simulation and how either the average or integral comes in? Jeff
Ahmad DArweesh
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 7 years ago 19 ott 2017, 17:57 GMT-4
Updated: 7 years ago 20 ott 2017, 12:06 GMT-4

I am sweping a structure width of gold which placed on the top of GaAs. Light is normally incident on the structure. I want to calculate the light intensity in the GaAs. which one should I use surface integration or surface average to get the right values? I am using this equation (emw.normE^2). I attached two imgs

I am sweping a structure width of gold which placed on the top of GaAs. Light is normally incident on the structure. I want to calculate the light intensity in the GaAs. which one should I use surface integration or surface average to get the right values? I am using this equation (emw.normE^2). I attached two imgs

Attachments:

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.

Suggested Content