As the physical size of single pixels in digital cameras grows smaller, the captured images are increasingly affected by defocused blurring and consequently valuable details are lost. Different aperture patterns have already been proposed...

We compare the iterative angular spectrum (IAS) and the optimal rotation angle (ORA) methods in designing two-dimensional finite aperture diffractive optical elements (FADOEs) used as beamfanners. The transfer functions of both methods are compared...

This paper presents an analytical method to determine the electric field inside an enclosure with an aperture from a thin wire as an efficient source outside the enclosure. In this regard, the wire is divided into multiple segments as discrete plane...

between either sides of the shields results in designing apertures and slots. These discontinuities in the shield body are the main causes of leakage and shielding degradation. Therefore, studying the shields with apertures is a popular branch...