Hi @Mery,

I believe this is a duplicate of:

In general, it is a good practice to post your question only once. One of the main reason being that someone might find one of the posts and starts working on an answer, while the other post could be answered already. Thereby wasting time for that person. Please consider that most people who contribute to that community are doing it for free, and I’m sure you wouldn’t want them to spend time answering a question that was already answered elsewhere. Please consider deleting one of the questions, or ask Zemax staff if you do not manage yourself.

I have never tried this example, do they also give you the source code of that DLL? You could try to recompile it for your machine. Also, can you confirm that the users is correct in the path, since you masked it in your screenshot it is hard to say, but is it the same as in your file explorer?

I hope you find a solution soon. Take care,

David

Hi Mery,

Thank for reaching out! I have followed your posts on our forums and I am currently trying to find the reason you are facing this issue. Can you please inform me wether or not you have followed the previous steps of our Large-Scale Metalens – Ray Propagation article? Have you managed to generate the .h5 file? Following the steps 2 and 3?

Kind Regards,

Niki

Let’s keep the discussion on this post. Please reply only here, and when we end up finding the cause I can update the other forum posts as well.

Hi Mery,

Thank you for sharing your .h5 file and your detailed explanation!

I managed to make it work with your file from my end. I currently have Ansys Zemax OpticStudio 2023 R2.02 version. What I did was to locate the lumhdf5.dll, lumhdf5_hl.dll, and zlib1.dll files. In my case they were here: C:\Program Files\Lumerical\v232\bin. I suppose it is the same for you if not you can search your pc and find them. I copied and pasted them here: C:\Program Files\Ansys Zemax OpticStudio 2023 R2.02. Again I believe that you should have this folder in the same location. If not search for Ansys_Zemax_OpticStudio_Prerequisites on your pc, right click and then open file location, you should see a folder with some more folders and .dll files:

I renamed the .h5 file that you send me to rcwa_R10mm_f300mm.h5 and put it into the Zemax>DLL>Surfaces folder. You can find this folder by following the steps below:

1. Open ZOS
2. Go to Set up Tab
3. select OpticStudio Preferences
4. Select Folders 
5. Find were the Data are located

6. 

   Copy and paste this path to your folder explorer

7. Find the DLL file

8. Find the surfaces file

9. Paste the .h5 file there:

   

I hope that works for you as well! Please let me know either way!

Hi Mary,

I am sorry to hear that. Will you be able to send me some screenshots as I did above to confirm that the files are at the right place? Also, is there a chance that you have the previous version of Zemax still installed? If yes, you might need to uninstall it, and again make sure that you are placing the files at the right folders and not on a previous version of Zemax.

Kind Regards,

Niki

Hi @Niki 

I am encountering a similar issue to Mery's. I have attached a screenshot for reference. I was following the instructions provided at https://optics.ansys.com/hc/en-us/articles/18254409091987-Large-Scale-Metalens-Ray-Propagation.

I successfully completed up to step 5, following the guidance provided above. However, at step 6, neither the .zprj file nor the .dll for my metasurface was generated. I also tried to do repair and reinstall.

Could you advise on how I might resolve this issue?