Spherical angular spectrum and the fractional order Fourier transform.
نویسندگان
چکیده
The notion of a spherical angular spectrum leads to the decomposition of the field amplitude on a spherical emitter into a sum of spherical waves that converge onto the Fourier sphere of the emitter. Unlike the usual angular spectrum, the spherical angular spectrum is propagated as the field amplitude, in a way that can be expressed by a fractional order Fourier transform.
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ورودعنوان ژورنال:
- Optics letters
دوره 31 23 شماره
صفحات -
تاریخ انتشار 2006