Updated Outline

• Title Slide
• Summary
• What is going to be discussed in the presentation
• Larger project and Deformable mirror
• To develop a sensor to compete with the Shack-Hartmann
• Basics of wavefront sensing
• what a wavefront is,
• Purpose of what I am doing
• What is an optical differentiation sensor
• diagram and explanation
• prototype
• Comparison between OD and Shack-Hartmann sensor
• OD has better dynamic range, can look at polychromatic sources
• Important to make sure quality of image is the same
• Explanation of Signal to Noise Ratio
• Important to compare different sensors
• Shows how much of original image is preserved
• Equation for the SNR of OD and SH sensor
• From paper by Oti
• Explanation of terms
• Derivation
• Numerical calculation of SNR of both sensors
• Estimation for number of photons and ensemble average
• Actual calculation
• Analysis of numerical calculation
• Oti Graph
• Difference in Airy rings
• Atmospheric turbulence term for Shack-Hartmann sensor
• Graph and explanation
• Centroid error term for Shack-Hartmann sensor
• Graph and Explanation
• SNR of camera for broadband
• graphs and analysis
• SNR of camera for lasers
• graphs and analysis
• Analysis of camera SNRs
• Conclusion