Register to reply 
Refractive index(n(ω)) calculation: KramersKronig relations 
Share this thread: 
#1
Feb1911, 12:37 PM

P: 2

I try to calculate refractive index of experimental spectral data using KramersKronig relations but didn’t succeed. I need your expert advice and help to solve this problem.
Data and expression for KK relation is give in worksheet, where alpha(omwga) is in cm1. Solution through Matlab or Origin is more helpful for me since I am familiar with this two software. 


#2
Jun811, 02:46 AM

P: 25

I have used it myself and it works pretty well 


#3
Jun911, 04:03 PM

P: 2

Yes, KK relation is the Hilbert transform and no need to write complected program for KK relation in Matlab. Cheers Devnath 


#4
Jan1212, 06:45 PM

P: 42

Refractive index(n(ω)) calculation: KramersKronig relations
can you please give details of the steps you have taken to solve your problem. I am facing similar problem, I have n, k values and by using KK want to extrapolate to higher and especially lower energies.
thank 


#5
Jan3112, 04:13 AM

P: 1

I want to evaluate refractive index from experimental data using KKR relation. As the data is limited to a finite spectrum, it is difficult to reduce errors related to infinite spectrum integration in KKR.
The calculated hilbert transform directly on 'absorption coefficient' data but it did not make any sense. Can you please elaborate on Hilbert transform in matlab to solve KKR relations. Thanks, Amin 


#6
Jan3112, 08:19 AM

P: 25

That is the kind of stuff I get paid for. :) Can't just give out all the details of the program for free.



#7
Jul612, 03:17 AM

P: 1

I have Absortion data vs wavelength. I want to evaluate the refractive index using matlab or origin but I did not success..I use hilbert transform but after that I dont know how to manage the refractive index from these data. Please help!!!



Register to reply 
Related Discussions  
Refractive index of gold? (& negative refractive index, + surface plasmon resonance?)  Atomic, Solid State, Comp. Physics  3  
Formula KramersKronig  Atomic, Solid State, Comp. Physics  1  
Solving Kramers Kronig Relation using MATLAB  Math & Science Software  3  
Kramers Kronig transforms for refractive index  Atomic, Solid State, Comp. Physics  4  
KramersKronig in Optics  code request.  Computing & Technology  0 