Shit I can't believe its October already. I feel like I've basically been a waste of precious government resources the last year, but I guess that's just the pace research moves. This blog has helped though...helped me realize how much time I've wasted on certain ::cough::spgd::cough:: algorithms.
I finally ordered a new HeNe laser like I always wanted. Its going to require some substantial changes to the glass in my experiment so I've decided not to waste any time messing around with my current setup until I get it. The diode laser spot was just too messed up by the time it reached the WFS to provide useful data. The problem, I think, is that the spot divergence is inversely related to the spot magnification, and diode laser spots diverge asymmetrically. The result was far from circular after passing through so many optical elements, and as a result the accuracy of a measured wavefront was seriously suspect.
I hoping it arrives next week. I'm using the down time to get outside of the lab and reacquaint myself with some long rusty controls material. I'm really interested in eventually trying some adaptive Q parameterization, but that means I have to know such riveting concepts as coprime factorization and Bezout identities.
Plus, the ratio sucks in the engineering buildings. Outside classes are in session, the sun is shining, people are out and about...its no time to be stuck indoors with a bunch of lasers and postdocs.
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On the edge of incompetence
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