Wiki source code of Partial Coherence Simulation
Last modified by rangeadm on 2025/04/23 16:13
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9.1 | 1 | In order to simulate the temporal and spectral distribution of SASE pulses there is an easy way based random fluctuations filtered spectrally and temporally. |
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2.1 | 2 | |
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9.1 | 3 | The only input parameters are the center wavelength, spectral bandwidth and the pulse duration. |
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2.1 | 4 | |
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24.1 | 5 | Below you can find a python implementation (by (% class="twikiNewLink" %)Martin Beye and Christopher Passow(%%)) of the partial coherence method as described in: |
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2.1 | 6 | |
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24.1 | 7 | * **Thomas Pfeifer et al. //Partial-coherence method to model experimental free-electron laser pulse statistics,// Opt. Lett. 35, 3441-3443 (2010);** [[link to the paper>>url:http://dx.doi.org/10.1364/OL.35.003441||shape="rect"]] |
| 8 | * and here a paper comparing the model to advanced simulations and experiments [[I. Bermudez et al Optics Express 29, 10491 (2021)>>url:https://doi.org/10.1364/OE.419977||shape="rect"]] | ||
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2.1 | 9 | |
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10.1 | 10 | == |
| 11 | Examples: == | ||
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9.1 | 12 | |
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20.1 | 13 | [[~[~[image:attach:binder_badge.png~|~|thumbnail="true" width="150"~]~]>>url:https://mybinder.org/v2/git/https%3A%2F%2Fgitlab.desy.de%2Fchristopher.passow%2Fsase-pulses/master?filepath=simulating_SASE_pulses.ipynb||shape="rect"]] |
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19.1 | 14 | |
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9.1 | 15 | //CentralEnergy=80 # in eV// |
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2.1 | 16 | |
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9.1 | 17 | //bandwidth=0.5 # bandwidth in %// |
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2.1 | 18 | |
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9.1 | 19 | //dt_FWHM=10, 30., 70 # FWHM of the temporal duration on average// |
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4.1 | 20 | |
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| 24 | [[image:attach:2020-07-07 16_51_14-Window.png||height="250"]] | ||
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2.1 | 26 | \\ |
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9.1 | 28 | [[image:attach:2020-07-07 16_53_22-Window.png||height="250"]] |
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| 30 | [[image:attach:2020-07-07 16_52_27-Window.png||height="250"]] | ||
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2.1 | 32 | \\ |
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25.1 | 34 | offline version: |
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4.1 | 35 | |
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11.1 | 37 | |
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25.1 | 38 | {{view-file att--filename="simulating_SASE_pulses.pdf" height="250"/}} |
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| 40 | [[attach:simulating_SASE_pulses.ipynb]] | ||
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6.1 | 42 | \\ |
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4.1 | 46 | \\ |
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4.1 | 48 | \\ |
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25.1 | 51 | |
| 52 | \\ |