[Manoranjan MinzParticipant]

Thank you Sir,

I believe S-parameter port works only for 3-D structures. Is there any way I can do it in 2D structures?

~Manoranjan

[Manoranjan MinzParticipant]

Sir, I have sent the file to your mail id. Please look into it and kindly revert back.

Thank you
Manoranjan

[Manoranjan MinzParticipant]

I am using OptiFDTD 14.0. I am sorry I can’t upload it here, if you have any private mail ID I could send it over there.

Regards
Manoranjan

[Manoranjan MinzParticipant]

Sir,

1. Center frequency = 193.414 THz, FWHM = 147.09 THz. DFT spectrum was set to auto which was from some 1420nm-1700nm wavelength for 200 sample values.

2. I am using simple Si and SiO2 with constant real refractive index. n_Si = 3.473, n_SiO2 = 1.444. There is no imaginary part.

I can’t figure out where did I make the mistake.

Attachments:

1. 

   input.jpg
   

2. 

   dft.jpg
   

3. 

   si.jpg
   

4. 

   sio2.jpg
   

[Manoranjan MinzParticipant]

In some cases I am also getting T>100%. How did you fix it?

[Manoranjan MinzParticipant]

Waveguide dimensions are:

Waveguide1: Length=20um, Width=1um
Waveguide2: Length=20um, Width=140nm
Grating: height=300nm, period=360nm