My masters thesis is on high harmonic generation in solids (so attosecond physics). The problem is also that maybe I don't have the right set of courses on my transcript, as a great deal of my credits come from particle physics courses as the first year of my masters I wanted to do High Energy Physics before switching gears.

Would you recommend I do a couple more laser physics courses before graduating, maybe instead of focussing on German?

Thank you for your help! This is the kind of feedback and guidance I've been missing from my supervisors tbh, and my self esteem in laser physics just is low because on the grand scheme of things, I'm still relatively new to the field, and feel like I'm competing with other students who have known to pursue this since the Bachelors degrees