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Bessel beams #209

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GoogleCodeExporter opened this issue Aug 12, 2015 · 5 comments · Fixed by #304
Open

Bessel beams #209

GoogleCodeExporter opened this issue Aug 12, 2015 · 5 comments · Fixed by #304
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@stefaniagl
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comp-Logic Related to internal code logic feature Allows new functionality pri-Medium Worth assigning to a milestone usability Makes using code more convenient
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1.5

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It should be easy to implement Bessel beams in ADDA. They are becoming more and 
more popular, so applications should come by.

Original issue reported on code.google.com by yurkin on 2 Jul 2015 at 8:59
@GoogleCodeExporter GoogleCodeExporter added OpSys-All usability Makes using code more convenient comp-Logic Related to internal code logic pri-Medium Worth assigning to a milestone labels Aug 12, 2015
@myurkin myurkin modified the milestone: 1.4 Aug 13, 2015
@myurkin myurkin added feature Allows new functionality and removed Milestone-1.4 labels Aug 13, 2015
@myurkin myurkin self-assigned this Nov 12, 2015
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myurkin commented Sep 13, 2018 •
edited

/cc @stefaniagl

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myurkin commented Jun 15, 2019 •
edited

Proof-of-principle is available at https://github.com/stefaniagl/adda

This was referenced Mar 25, 2020
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6 Bessel beam types have been implemented - LE - linear electric field, LM - linear magnetic field, CS - circularly symmetric energy density, TEC, TMC - polarizations generating TE and TM Bessel beams, and M - generalized type.

@myurkin myurkin assigned stefaniagl and unassigned myurkin Feb 2, 2021
@myurkin myurkin mentioned this issue Oct 15, 2021
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@stefaniagl stefaniagl mentioned this issue Nov 11, 2021
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myurkin commented Dec 7, 2021

After the pull request (#304) will be merged we still need the following to finalize this issue (to be submitted as the new pull request):

  • new tests in tests/2exec (new command lines in suites, and potentially ignores for comparison with previous versions).
  • new tests in tests/2equiv (specification of M matrix vs. simple types).
  • description of new beams in the manual (maybe even mention some formulae, but in a concise manner)

myurkin added a commit that referenced this issue Dec 19, 2021
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Bessel beams (#304)
7ef46af 
- adds vector Bessel beams of LE, LM, CS, CS', TEM, TEL, and generalized types as incident field (#209).  They rely on new Fortran file `bessel.f90`.
- new command line option `-beam_center <x> <y> <z>`. Corresponding arguments to some older `-beam ...` are now obsolete (#245).
- beam center in laboratory reference frame is now specified always (even when at origin)
- calculation of Cext through F(0) is now used only for default position of the plane wave
- adds beam vorticity as a general parameter. It affects the relation between two incident polarizations (rotation + phase change) and adds phase factor to computation of the amplitude matrix. The latter is ignored in some places, when only the Mueller matrix is computed at the end.
- removes a lot of redundant code in calculation of plane incident wave in surface mode (probably was used long ago for alternative calculation of Cext)
- adds auxiliary function ScanDouble3Error() in param.c
- updates instructions for adding new beams

Co-authored-by: stefanyagl <42984899+stefanyagl@users.noreply.github.com>
Co-authored-by: Maxim Yurkin <yurkin@gmail.com>
@myurkin myurkin reopened this Dec 20, 2021
@stefaniagl stefaniagl mentioned this issue Dec 22, 2021
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@stefaniagl stefaniagl mentioned this issue Dec 30, 2021
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@stefaniagl stefaniagl mentioned this issue Feb 4, 2022
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@stefaniagl stefaniagl mentioned this issue Aug 23, 2022
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myurkin commented May 1, 2024

Non-trivial application of Bessel beams for imitating circular polarization of a plane wave are discussed at https://groups.google.com/g/adda-discuss/c/k-ClVwvwQQk . In particular, interesting combinations are used in tests/equiv/ext_CD.py. One of them highlights the lack of robustness for M matrices corresponding to TE and TM beams for very small half-cone angles.

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Bessel beams stefaniagl/adda
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