IFDDA, an easy-to-use code for simulating the field scattered by 3D inhomogeneous objects in a stratified medium: tutorial

Patrick C Chaumet (1, 2) , Daniel Sentenac (3) , Guillaume Maire (2) , Md Rasedujjaman (2) , Ting Zhang (4) , Anne Sentenac (2)

1 SEMO - SEMO
2 FRESNEL - Institut FRESNEL
3 EGO - European gravitational Observatory
4 Zhejiang University

In this tutorial, we introduce a solver of monochromatic Maxwell equations made freely available at https://www.fresnel.fr/perso/chaumet/ifdda.html, based on the volume moment method. The Institut Fresnel Discrete Dipole Approximation or Idiot-Friendly Discrete Dipole Approximation (IFDDA) calculates the diffracted field, the optical forces, and the image through a microscope of any three-dimensional inhomogeneous object, possibly anisotropic, placed in a stratified medium. In this method, only the object is meshed so the required memory space is kept to a minimum. We describe the principle and the potentialities of IFDDA and present comparisons with Mie theory and experimental data to assess the accuracy of the method. In addition, we provide a user guide for first steps with the solver. We hope that you will use and enjoy this numerical tool!

Domaines: Optique [physics.optics]

Patrick C Chaumet, Daniel Sentenac, Guillaume Maire, Md Rasedujjaman, Ting Zhang, et al.. IFDDA, an easy-to-use code for simulating the field scattered by 3D inhomogeneous objects in a stratified medium: tutorial. Journal of the Optical Society of America. A Optics, Image Science, and Vision, 2021, 38 (12), pp.1841. ⟨10.1364/josaa.432685⟩. ⟨hal-03462189⟩