@misc{Zeng_Danyan_Beam_2008,
 author={Zeng, Danyan and Sun, Zhijun},
 contributor={Gaj, Miron. Redakcja and Urbańczyk, Wacław. Redakcja},
 year={2008},
 rights={Wszystkie prawa zastrzeżone (Copyright)},
 publisher={Oficyna Wydawnicza Politechniki Wrocławskiej},
 description={Optica Applicata, Vol. 38, 2008, nr 3, s. 511-517},
 language={eng},
 abstract={We analyze optical diffraction of a micro-aperture (slit or hole) in a metal screen in the intermediate zone and report its application for beam focusing and collimating in micro-optics. Both finite-difference time-domain simulations and Rayleigh–Sommerfeld diffraction formula were applied to calculate the intermediate-zone diffraction patterns. It is shown that, by controlling the aperture size, the focal length and depth can be adjusted in a very wide range, from subwavelength to tens of wavelengths, while the focal width maintains in an order of wavelength.},
 type={artykuł},
 title={Beam shaping based on intermediate zone diffraction of a micro-aperture},
 keywords={optyka, aperture, diffraction, beam shaping},
}