Page 169 - Introduction to Information Optics

2. Signal Processing with Optics

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filter

2.16 The transaxial location of an input transparency introduces a quadratic
phase factor in a spatial filter synthesis,
(a) Show that the quandratic phase factors produced in the optical setup
of Fig. 2.68 would be mutually compensated.
(b) If the recorded H(p, q) (joint transform filter) is inserted back at the
input plane of Fig. 2.68, calculate the output complex light field.
(c) If H(p, q) is inserted at the front of the transform lens, what would be
the scale of the output light field?

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Fig. 2.67.