Abstract
Assuming a non-paraxial propagation operator, we study the propagation of an electromagnetic field with an arbitrary initial condition in a quadratic GRIN medium. We show analytically that at certain specific periodic distances, the propagated field is given by the fractional Fourier transform of a superposition of the initial field and of a reflected version of it. We also prove that for particular wavelengths, there is a revival and a splitting of the initial field. We apply this results, first to an initial field given by a Bessel function and show that it splits into two generalized Bessel functions, and second, to an Airy function. In both cases our results are compared with the numerical ones.
Original language | English |
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Pages (from-to) | 10445-10457 |
Number of pages | 13 |
Journal | Optics Express |
Volume | 24 |
Issue number | 10 |
DOIs | |
State | Published - 16 May 2016 |