Doctoral Thesis: Design and Transformation of Three Dimensional Pupils: Diffractive and Subwavelength

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Event Speaker: 

Hanhong Gao

Event Location: 

5-217

Event Date/Time: 

Friday, April 25, 2014 - 2:00pm

Abstract: Volume holograms are good candidates for pupils of optical imaging systems thanks to their three-dimensional structure, which provides richer design flexibility compared to conventional two-dimensional pupils. In this thesis, I will propose the system design as well as the optimization of depth selectivity for enhancing the signal-to-noise ratio of ground-based imaging system for the detection of artificial satellites. In addition, deformations of volume hologram pupils promise additional opportunities to design further, more sophisticated point spread functions which are potentially useful for many imaging purposes. Deformations using multiple point indenters will be investigated in terms of both forward and inverse problems. Bulk transformation is a more general approach for pupil design. The physical relationship between transformation and resulting point spread function will be discussed by deriving the corresponding analytical expressions.
 
Presenter's Affiliation: 3D Optical Systems Group
Thesis Supervisor: George Barbastathis