On 2/12/19 04:38, Prs R wrote:
Thanks for your answer but I've got a question about the physical meaning of the aplitude function. I understand that the "k" is used to obtain an inclination of the beam but how is the "sigma" that I introduce linked with pysical values like the NA and the wavelenght?
The NA for a Gaussian beam of width w ("sigma" in the script) at a wavelength l in air is sin(l/(πw)) as described in:
https://en.wikipedia.org/wiki/Gaussian_beam#Beam_divergence _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
