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complex refractive index convention in COMSOL waveoptics module
Posted Jan 28, 2015, 4:56 a.m. EST Version 4.4 1 Reply
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Hi,
Can anybody help me to know what is the correct convention of extinction coefficient of refractive index in COMSOL?. I want to assign polystyrene complex refractive index. I have values at 3.4 um wavelength n=1.59 and k=0.0294 (absorption). which one is correct one to represent in comsol to assign PS absorption? 1.59+i*0.0294 or 1.59-i*0.0294?. Any suggestions on this would be appreciated.
Mahendar
Can anybody help me to know what is the correct convention of extinction coefficient of refractive index in COMSOL?. I want to assign polystyrene complex refractive index. I have values at 3.4 um wavelength n=1.59 and k=0.0294 (absorption). which one is correct one to represent in comsol to assign PS absorption? 1.59+i*0.0294 or 1.59-i*0.0294?. Any suggestions on this would be appreciated.
Mahendar
1 Reply Last Post Jan 28, 2015, 5:05 a.m. EST
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Posted:
10 years ago
Hi again,
I got some info from COMSOL following link. if k<0, lossy medium and k>0, medium with gain
www.comsol.co.in/support/knowledgebase/1009/
I got some info from COMSOL following link. if k<0, lossy medium and k>0, medium with gain
www.comsol.co.in/support/knowledgebase/1009/