4F Optical Correlator

• Electric field at object plane; E(x0,y0)

• At BaTiO3; Ein(wx,wy) ? F{E(x0,y0)}

• Past BaTiO3; Eout(wx,wy) ? F{E(x0,y0)}?(wx,wy )

• At image plane; E(x,y) ? F{?(wx,wy )}?E(-x0,-y0)

wX

F2

Detector

BaTiO3

x0

y0

F1

F1

Cell

wY

y

F2

x

Lens 1

Lens 2

Object

Plane

Conjugate

Plane

Image

Plane

Ein

Eout

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