Quasioptical Polarizer Based on Self-Complementary Sub-Wavelength Hole Arrays

In this letter, extraordinary transmission in sub-wavelength hole arrays is employed in combination with self-complementary Babinet concepts to design a novel class of quasioptical polarizer for millimeter wave frequencies. After a proper design, the device has been miniaturized in such a way that operation under Fresnel zone of a Gaussian beam has been demonstrated. Experimental validation opens up the way to new possibilities for polarizer design.