1.
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Field1_Width= 0.000000 fs # [RT Field1] Width
What is the physical meaning of this parameter and how should it be set?
It is the pulse duration in case you select "GAUSS" or "QSSIN" in point 2
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Field1_kind= "DELTA" # [RT Field1] Kind(SIN|RES|ANTIRES|GAUSS|DELTA|QSSIN)
How to set this parameter when calculating circularly polarized light?
It is the kind if pulse in the simulation.
- "DELTA" is a "Dirac Delta in time" pulse and is usually what you want to compute absorption
- "SIN", "RES" and "ANTIRES" are pulses which oscillate in time at a specific frequency
- "GAUSS" is a gaussian in time
- "QSSIN" is a pulse with a Gaussian profile in time, convoluted with a function oscillating at a specific frequency
The circular polarization is constructed using two linearly polarized pulses shifted in time by T/4 (here T=2pi/omega is the period)
It is meaningful only for the pulses where a frequency is defined: "SIN", "RES" "ANTIRES", "QSSIN"
It is ignored otherwise
3.How to set the left and right circularly polarized light, separately?
One option is to set for left
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% Field1_Dir
1.000000 | 0.000000 | 0.000000 | # [RT Field1] Versor
%
% Field1_Dir_circ
0.000000 | 1.000000 | 0.000000 | # [RT Field1] Versor_circ
%
and for right
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% Field1_Dir
1.000000 | 0.000000 | 0.000000 | # [RT Field1] Versor
%
% Field1_Dir_circ
0.000000 | -1.000000 | 0.000000 | # [RT Field1] Versor_circ
%
or
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% Field1_Dir
0.000000 | 1.000000 | 0.000000 | # [RT Field1] Versor
%
% Field1_Dir_circ
1.000000 | 0.000000 | 0.000000 | # [RT Field1] Versor_circ
%
(I could have reversed left and right, please check)