Abstract
The relationship between the mode content and the fractional Fourier and fractional Hankel transforms of a function is established. It is shown that the Laguerre-Gauss spectrum of a rotationally symmetric wavefront can be determined from its fractional Hankel transforms taken at the optical axis.
Original language | English |
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Pages (from-to) | 1206-1208 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 24 |
Issue number | 17 |
DOIs | |
Publication status | Published - 1999 |