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Single polarization calculation #30
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When implementing single-polarization calculation, quadratic quantities can also be calculated (4 quantities, similar to the Mueller matrix - see how it is done in DDSCAT - Section 26.6 of manual v.7.3.3). But the names of the output files should probably be changed from |
Recently, we stumbled upon an issue for certain Bessel beams with very small half-cone angles (e.g., CS', TEL, and TML beams of order 2), which are almost proportional to circularly-polarized plane waves. They cause the failure of the QMR_CS iterative solver, since the pseudo-product of incident beam by itself is almost zero. The same problem is expected for circular plane waves, if generated directly. The current workaround is to use a different iterative solver (like BiCGStab or CSYM), but we may think of some automatic processing (switch of the iterative solver or of the initial vector) in the future. |
Many workarounds for simulating circular polarization (including computing circular dichroism) are discussed at https://groups.google.com/g/adda-discuss/c/k-ClVwvwQQk |
Original issue reported on code.google.com by
yurkin
on 24 Dec 2008 at 6:55The text was updated successfully, but these errors were encountered: