Beam Source in Ansys Lumerical FDTD — Lesson 4

Physics and Applications

A beam source is commonly used to inject a light with a finite spot size. In this video lesson, you will learn about various types of beams and their settings.

Reference papers discussing methods used for calculating the beam profile by thin lens method:

  • M. Mansuripur, "Distribution of light at and near the focus of high-numerical-aperture objectives," J. Opt. Soc. Am. A 3,2086-2093 (1986).
  • M. Mansuripur, "Certain computational aspects of vector diffraction problems," J. Opt. Soc. Am. A 6, 786-805 (1989).
  • M. Mansuripur, "Distribution of light at and near the focus of high-numerical-aperture objectives: erratum, Certain computational aspects of vector diffraction problems: erratum" J. Opt. Soc. Am. A 10, 382-383 (1993).

Setup and Tips

In this video lesson, we will demonstrate how to set up the TFSF source using a simple particle-on-substrate example. You can download the simulation file and follow the steps shown in the video.