Light Beam in simulation

jehanxt

I have a Gaussian spectral distribution light beam with a mean wavelength of nm with a Half width of Gaussian of 5nm of 100W Emittance power. When entering this characteristics to the optics software I'm looking how to convert this 5nm FWHM to a angle as shown in figure below. Does anyone know how to find this AWHM angle in the Ansys software.

jehanxt

There have been few typo in the question. Below is the light beam characteristics and Im looking what is the FWHM angle or is the above figure in the problem is correct? IS there a way to find this FWHM angle?

Spectrum Distribution = Gaussian

Mean Wavelength 425nm

Half Width of Gaussian=5nm

Emitted Power=100W

Air area(r=1mm) =3.14mm2

light beam in perpendicular to the surface

Kremella

Hello,

Our apologies for the delayed response. Which modeling tool are you using here? Based on your answer, I'll try to find the right person for this issue.

Thank you.

Karthik

Kremella

Hi,

Please take a look at this document to understand more about AWHM angle.

https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v211/en/Optis_UG_ASP/Optis/UG_ASP/understanding_the_parameters_of_a_surface_source_178506.html

Thank you.

Karthik