Learning Forum

[ashish.singh]

I am trying to covert .fsp to lsf using Lumerical_project_to_setup_script.lsf in lumerical 2024R1.1 and the app keeps on crashing every time I run Lumerical_project_to_setup_script.lsf. Please let me know if there is any updates. 

[Amrita Pati]

Hi Ashish,

There was an issue with the script but the updated one has not been uploaded. I will check with my colleague and get back to you on this.

Regards,
Amrita

[ashish.singh]

Thank you for the reply please get back to me as soon as possible also I have encountered another issue if I am trying to run an.FSP or .lsf made on file made on the 2022r version seems to change the values automatically of structures and mesh in the 2024r version please have a look at that also. 

Another problem that I have been encountering 

 

This simulation failed. Please contact Lumerical Technical Support with
this error message: the reason for the failure was: Cannot find and load nvml.dll
Error: Process number: 0 had an error code 5 and had to terminate.

[eliza gomez]

 

Experiencing app crashes can be frustrating, but rest assured, the development team is dedicated to resolving this issue swiftly. Ensure your app is updated to the latest version, as often updates include bug fixes. Additionally, clearing cache or reinstalling the app may help. Contacting support for personalized assistance is recommended for a smoother experience.

 

[Amrita Pati]

Hi Ashish,

Sorry, I missed this earlier. The issue with the project to script is a bug. It is not working starting 2024 R1. I will let you know when it is fixed. I haven't managed to spend time to find a workaround. Let me see if I can do that.

I have encountered another issue if I am trying to run an.FSP or .lsf made on file made on the 2022r version seems to change the values automatically of structures and mesh in the 2024r version please have a look at that also.

If the mesh changes a little bit, it could be due to updates to the meshing algorithm over the past releases, but could you elaborate how the structure changes? Do you mean the rendering of the geomerty changes? Are the results substantially different in both cases?

For the last issue, I will ask you to perform a clean installation: Fixing installation or licensing issues.

Regards,
Amrita

[ashish.singh]

so lets say i have put  a central wavelength at some value it seems to shift it by 20nm or something first. I have made lsf files which are not working properly as it changes the geometry like z position of dipole or doest even take the values which i did put in my script , so it does substancially chnages it which i have to fix again inn gui after making a model by .lsf.

 

Also I have a question when i see purucell in dipole section could you elbaorate how is it claculated for electric dipoles. does it takes into considration of structures made around dipole ? please give me an answers as soon as possible. 

 

[hasfer max]

App crashes persistently upon launch. Unable to proceed beyond the loading screen. Tried reinstalling, but issue persists. Please investigate and provide a fix urgently as it's hindering productivity. Error message: 'App has stopped unexpectedly.' Device: Android, OS version 11.0.2.

[Amrita Pati]

Hi Ashish,

If you are using the project to script files, then I would like to add that it is still initial stages and still needs some improvements. Would you be able to share your script (paste here) so that I can test it myself? If it is a bug I need to reproduce it before I could file a bug report.

The purcell factor is the ratio of the emission of a dipole in a given set of conditions as opposed to the emission in a homogenous medium. So, you can either calculate it by taking a ratio of the results returned by the dipolepower and the sourcepower script commands. Or there is another equation which in terms of the quality facor and mode volume. You can find axact detaile here: Purcell factor of a microdisk.

Hi Hasfer,

Could you please create a new post so that the engineers working on the infrastructure side can look into it?

Regards,
Amrita

 

[ashish.singh]

No, I am writing the scripts on my own even then I am facing difficulties please look into it. 

[Amrita Pati]

Hi,

Could you please copy and paste your code in your response? 

Regards,
Amrita

[ashish.singh]

so here for example

 adddipole;
set("name", "SPE"); 
set("y", 0);
set("z", gold+ sio2 + gaas+ (inas / 2)); 
set("amplitude", 1);
set("theta", 90);
set("phi", 0);
set("center wavelength", cen_w); 
set("wavelength span", w_span); 
addtogroup("::model"); 

 

cen_w is a variable at 1300nm but after running the script it comes around 1280nm. which significantly affects my model's cause of change in refractive index.  also, could you give me an example of optimization where I can use my variables from the script for optimization?

[Amrita Pati]

Hi Ashish, 

I used your code with cen_w = 1280 nm and w_span = 0 nm (not sure what you used for this field), I do not see any issue with the created dipole source. Here's a screenshot of the Frequency/Wavelength tab of the Dipole Source:

Would you be able to share a screenshot of yours?

I also ran the simulation (just a dipole in air) and checked the monitor results, in the results, the wavelength is also 1280 nm as you can see below:

You can find sample optimzation script here: Creating optimization tasks using a script

Regards,
Amrita

[miley cyrus]

 It's frustrating, but not uncommon. Try restarting your device, updating the app, or clearing its cache. If the issue persists, contacting customer support with details about the problem can help expedite a solution. They're there to ensure a smooth app experience for users like you.