Assignment 8
Read Smith chapter 11, sections 11.1 through 11.6 (p 347-361)
- Answer the following questions from your reading of chapter 11
- What Strehl ratio does Smith associate with l/8 p-v opd error?
- What is Smith's relationship between p-v and rms opd error for
smooth and rough deformations?
- What is a "hexa-polar" grid and how does Smith use it?
- Do the four questions at the end of chapter 4 of the printed notes.
- Plot the Strehl approximation for both the quadratic and
gaussian formulas on the same plot as a function of rms wavefront
error. Over what range of wavefront error do these two formulas show
acceptable agreement?
- The MATLAB program make_spots, found in spots.zip, generates a set of transverse
ray errors for a specific aberration. Find the centroid, rms spot
radius, and maximum spot diameter for this set of ray errors. The spot
diagram for these rays is shown below.
Maintained by John Loomis,
last updated 29 Nov 2006