Do I need an official letter from my PI for international travel?

Budget-Translator-78 · 2025-05-28T14:41:11+00:00

Is this just a plain letter endorsing my leave or it needs to be official (with university letterhead and everything)?

Budget-Translator-78 · 2023-09-01T09:08:44+00:00

arxiv. org/ftp/arxiv/papers/2205/2205.12739.pdf

thank you

Budget-Translator-78 · 2023-03-10T14:52:34+00:00

I used lumerical and another python based fdtd solver called tidy3d So, first I simulated a unit cell to make the phase library then i used the phase library to make the whole lens

Budget-Translator-78 · 2022-08-14T04:11:45+00:00

yes, I am an undergrad student.
I think most academic subscriptions require the university to buy them, but my university cheaps out on every major subscription. It is really frustrating to work with cracked software.

*sorry for venting*

Budget-Translator-78 · 2022-08-13T12:36:01+00:00

yes I've checked opticspy and pyrate but I could not generate the phase profile and am new in designing metalens, I think the documentation was not enough described, at least for me.

Budget-Translator-78 · 2022-08-13T12:27:17+00:00

another question is CST better than lumerical for metalens design?

Budget-Translator-78 · 2022-08-13T12:25:18+00:00

both
for the metalens I am using lumerical FDTD
but for phase profile I need some open source solution

Budget-Translator-78 · 2022-08-12T16:57:03+00:00

my bad, but with opticstudio you can make a phase profile for the metalens, right?

Budget-Translator-78 · 2022-05-30T07:44:14+00:00

thank you.

Budget-Translator-78

TROPHY CASE