Fraunhofer diffraction from a ring aperture with a spiral phase transmission function: numerical and analytical studies - Aubrecht, Ivo; Miler, Miroslav; Pala, Jan (Oficyna Wydawnicza Politechniki Wrocławskiej, 2003)
Optica Applicata, Vol. 33, 2003, nr 2-3, s. 225-235
Keywords: optyka; spiralphase filters; phase singularities; Fraunhofer diffraction; scalar wave theory