First Lab-Exercise: Diffraction, Lab-Text

Hi Everyone! 

The lab-text for the Diffraction Lab is now available here. Please read it before you attend the lab so you know what you're getting into. I hope everyone wanting to follow the course has signed up for a lab-time, since we still have a smaller number of participants for the doodle than at the 1st lecture. So if you haven't signed up yet - do so now! 

Cheers,

Ainar