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Need help on COMSOL - Transmittance/Transmission
Posted 3 août 2017, 19:14 UTC−4 Ray Optics, RF & Microwave Engineering, Wave Optics Version 5.2 1 Reply
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Hello,
Recently, I am working on a simulation to find the transmittance. It's a multi-layer structure in millimeter scale. I wonder which comsol module we need to use; wave optics or ray optics or RF?
I appreciate your help and time.
Thank you
Yang
Recently, I am working on a simulation to find the transmittance. It's a multi-layer structure in millimeter scale. I wonder which comsol module we need to use; wave optics or ray optics or RF?
I appreciate your help and time.
Thank you
Yang
1 Reply Last Post 3 août 2017, 19:30 UTC−4
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Posted:
7 years ago
more information:
The multi-layer structure is in millimeter scale but the wavelength I am using is in nano-meter.
The layers are just glass and air.
The transmittance (abs(ewfd.s21)) I got after compute is 0 transmittance and the electric field difference just occur on the top with a very very thin layer (the rest are the same valve).
I also tried to follow an example "Fresnel Equations" to build the model and test. Same problem happened. I wonder if the scale difference between the model structure and wavelength is the reason causing the problem.
Anyone has similar experience? Or, does someone know about the transmittance on multi-layer structure?
Thanks again.
Yang
The multi-layer structure is in millimeter scale but the wavelength I am using is in nano-meter.
The layers are just glass and air.
The transmittance (abs(ewfd.s21)) I got after compute is 0 transmittance and the electric field difference just occur on the top with a very very thin layer (the rest are the same valve).
I also tried to follow an example "Fresnel Equations" to build the model and test. Same problem happened. I wonder if the scale difference between the model structure and wavelength is the reason causing the problem.
Anyone has similar experience? Or, does someone know about the transmittance on multi-layer structure?
Thanks again.
Yang