Point Spread Function of Asymmetrically Apodized Optical Systems with Complex Pupil Filters: The One-Dimensional Case with Slit Aperture |
| M. Keshavulu Gouda, R. Komalab, A. Naresh Kumar Reddyb and S. Lacha Goudb
aDepartment of Physics, Nizam College, Osmania University, Hyderabad - 500 001, India bDepartment of Physics, College of Science, Osmania University, Hyderabad - 500 007, India |
| Received: March 27, 2011; revised version November 7, 2011; in final form January 22, 2012 |
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| Aimed at high resolution, an asymmetric point spread function has been obtained with good and bad sides by introducing three level asymmetric pupil functions. The good side has decreased side lobes while the bad side has increased side lobes. The asymmetry has been found to increase with the width of the edge strips within the slit aperture. On the other hand, there does not appear dependence of the asymmetry of the point spread function on the degree of amplitude apodization. But the magnitude of reduction of optical side-lobes is found to increase to a great extent by the amplitude apodization. |
| DOI: 10.12693/APhysPolA.122.90 PACS numbers: 42.25.Fx, 42.30.Kq, 42.79.Ci |