With my girlfriend out of the flat for a few days, it was time to finally do something about the spectrograph. If you’ve been looking at my hackaday projects you may know I’m trying to make a Gil-Simon spectrograph.¹
Much like nuclear fusion reactor technology, my Raman spectrometer has been close to completion since the beginning, and right now I’m closer than ever, and I have the pictures to prove it:
As evident from the photo, I’ve become quite adept at anodizing aluminium.
The geometry of the spectrograph is more apparent here:
Here a few of the mirrors are in place:
The mirrors work: The reflection of Little My is caught by mirror on the aluminium angle on the right and focused by the two OAPs:
Unfortunately my 3D printer is out of commision for the time being, so for the time being, I cannot print a mount for the grating..
 M. A. Gil and J. M. Simon, “New plane grating monochromator with off-axis parabolical mirrors,” Appl. Opt. 22, 152-158 (1983)