Yeah, obviously you can cut a lens in any shape you want. If it is not symmetrical around the center but is elliptical, it will have a different pattern in the x vs y plane.
Simple fourier transform theory will show you the radiation pattern.
the photolithography process is all about optics.
the photolithography exposure tools can contain uo to 40 lenses or even more.
the photolithography technology continues to improve if its lenses are improved.
I think, by now, you know that it's a related topic to the forum title: Optics.
thanks...
Added after 2 minutes:
echo47 said:
The forum title includes optics. Same stuff, different wavelength.
Simply answering "yes" to the original question does seem unsatisfying. There must be a deeper question.