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.

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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.

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