TY - JOUR
T1 - The iterative Fresnel integrals method for Fresnel diffraction from tilted rectangular apertures
T2 - Theory and simulations
AU - Abedin, Kazi Monowar
AU - Mujibur Rahman, S. M.
PY - 2012/6
Y1 - 2012/6
N2 - We applied the iterative Fresnel integrals method for the numerical computation of Fresnel diffraction patterns from rectangular apertures tilted at an arbitrary angle to the optical axis. Detailed theoretical formalism is developed and discussed, and then is applied for the numerical computation and simulation of the actual diffraction patterns for an arbitrary optical configuration. The generated intensity distributions (images) show distortion and stretching in the direction of the tilt, but not in the other orthogonal direction. Significant decrease of the intensity is also predicted and observed, the decrease being proportionate with the tilt angle. The simulated images qualitatively resemble those published in the literature. In addition to single-axis tilts, simultaneous rotations (tilts) of the aperture in two orthogonal coordinate axes were also briefly considered and simulated.
AB - We applied the iterative Fresnel integrals method for the numerical computation of Fresnel diffraction patterns from rectangular apertures tilted at an arbitrary angle to the optical axis. Detailed theoretical formalism is developed and discussed, and then is applied for the numerical computation and simulation of the actual diffraction patterns for an arbitrary optical configuration. The generated intensity distributions (images) show distortion and stretching in the direction of the tilt, but not in the other orthogonal direction. Significant decrease of the intensity is also predicted and observed, the decrease being proportionate with the tilt angle. The simulated images qualitatively resemble those published in the literature. In addition to single-axis tilts, simultaneous rotations (tilts) of the aperture in two orthogonal coordinate axes were also briefly considered and simulated.
KW - Fresnel diffraction
KW - Iterative Fresnel integrals method
KW - Tilted apertures
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U2 - 10.1016/j.optlastec.2011.11.004
DO - 10.1016/j.optlastec.2011.11.004
M3 - Article
AN - SCOPUS:84655161432
SN - 0030-3992
VL - 44
SP - 939
EP - 947
JO - Optics and Laser Technology
JF - Optics and Laser Technology
IS - 4
ER -