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Optics for Engineers
book

Optics for Engineers

by Charles A. DiMarzio
August 2011
Intermediate to advanced content levelIntermediate to advanced
564 pages
20h 45m
English
CRC Press
Content preview from Optics for Engineers
11
FOURIER OPTICS
We noted in Chapter 8 that the Fresnel–Kirchhoff integral is mathematically very similar to a
Fourier transform, and in fact, in the right situations, becomes exactly a Fourier transform.
In this chapter, we explore some of the applications of this relationship to certain optical
systems. Using the tools of Fourier analysis, following the techniques used to analyze lin-
ear time-invariant lters in electronics, we can describe the point-spread function (PSF) (see
Section 8.6.1) as the image of an unresolvable object. The Fourier transform of the PSF can be
called the transfer function. These functions are analogous to the impulse
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Publisher Resources

ISBN: 9781439807255