Abstract
Fourier transforms of fractional order a are defined in a manner such that the common Fourier transform is a special case with order a=1. An optical interpretation is provided in terms of quadratic graded index media and discussed from both wave and ray viewpoints. Fractional Fourier transforms can extend the range of spatial filtering operations.
| Original language | English |
|---|---|
| Pages (from-to) | 163-169 |
| Number of pages | 7 |
| Journal | Optics Communications |
| Volume | 101 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - 15 Aug 1993 |