Hi Damian,
Thanks for your response. yes, I am using observation area, and I click on power spectrum calculation to get the transmission versus wavelength curve as in the attached file. When I export the data, please see attached file, the first wavelength is 0.3, then the second wavelength is 0.301; How can I get more data points so my first wavelength is 0.3, and the follwing point is at 0.3001 so I get a curve with a higher resolution. In other words, is there any simulation parameter that I can change to get more wavelength points on the wavelength axisØŸ