It’s not surprising that some people grow up and still use LEGO in their projects, like [Steve] who has used LEGO to build an optics lab with a laser beam splitter. [Steve] started this project ...
a, (a) Two-wavelength holographic set-up for LBM monitoring, (b) laser fabrication machine (BE1-3: beam expanders, PBS1-3: polarizing beam splitters, M1-7: mirrors, C1-3: beam splitter cubes ...