Finite Differences Beam Propagation Method in 3-D

3-D Simulation of a gaussian pulse propagated in free space

Description

This set of simulations make use of the Alternating Direction Implicit method for solving the parabolic wave equation that arises in FD BPM.
The zip file includes the following programs:

FDBPM3D_free_space.m - Animation and video of the 3D propagation.
FDBPM3D_free_space_slice.m - It shows slices of the propagated pulse.
FDBPM3D_free_space_volume.m - It displays the laser beam as it would look in free space after a 1500 um propagation.

• MATLAB release: MATLAB 6.5 (R13)

[Eduardo Jiménez]

Exelente trabajo

[Alex S]

Thank you for this code. It is really brilliant.

[Ting Whang]

Thank you very much for your code!
Could you tell me more about your algorithm?I can not understand the ADI you use.

[Edgar Guevara Codina]

Ting,

I based my code on the book "Applied numerical methods for engineers using MATLAB and C", by Robert J. Schilling and Sandra L. Harris. ISBN: 0-534-37014-4.
It has a very nice chapter on finite differences, they solve a heat transfer problem, but it's the same kind that of the wave equation I solve in this program.

[jlina lin]

Thank you so much, I will try.

          good luck

[najiyah safwa]

 

[Musa]

thanks

[Longjiang ?]

Thanks a lot