Elegant users forum

Michael, Sorry I didn't notice your reply. I am confused about the LASER_TILT. I thought it meant to tilt the wave front of the laser pulse, which is similar with the work of Phys. Rev. ST Accel. Beams 17, 070701. Here I want to rotate the polarization direction of the laser to generate electric fie...

Hi Michael, I have tried the new version and thanks for your work. Now I have a new problem. It seems that the laser in the undulator only have one polarization direction. However, when it is helical undulator, I want to rotate the laser polarization direction to (\hat{x}+\hat{y})/\sqrt(2), so that ...

Hi Michael,

Is there anything new about this topic? Is it possible to simulate the modulation in helical undulator now?

Thanks.

Zhen

Hi Michael,
Are there any new functions to simulate the laser modulation in a helical undulator by now? LSRMDLTR only includes planar one.
Thanks.
Zhen

Michael,

I find a reference that gives the fields of helical wiggler by leading terms (A2 ans A3 in the attached paper). A3 is in rectangular coordinates. Could you please help us add this field to the code?

Thanks.

Zhen

The phase space of y-yp for different FIELD_EXPANSION are attached.

Michael,

Attached please find the input files of LSRMDLTR. For different FIELD_EXPANSION I found the final phase space t-yp and y-yp were different. There were vertical focusing when it was "leading terms" or "exact". The code version is 26.0.2 on the oak cluster of SLAC.

Thanks.

Zhen

Hi Michael,

I find this bug show up again in version 26.0.2, with incorrect vertical focusing when the field expansion is set to "leading-terms" or "exact".

Zhen

Hi,
I want to simulate laser modulation in a helical undulator. But LSRMDLTR only includes planar one. Any suggestion for this? Is it possible to add an element to deal with laser modulation in helical undulator?
Thanks.
Zhen