q-plates are quasi-optical devices specifically designed to generate and detect the orbital angular momentum states of the light. It is possible to produce q-plates working at millimeter wavelengths by using a well-known and cheap manufacturing technique. The technique consists of creating inhomogeneous, artificial birefringent materials by machining grooves with specific geometries into normal dielectric materials. In this work, a q-plate working around 100 GHz has been designed, manufactured, and tested using a vector network analyzer. The experimental data validate the modeled intensity and phase for the transformation of an incident Gaussian beam. © 2013 Optical Society of America.
Q-plate for millimeter-wave orbital angular momentum manipulation / Maccalli, S.; Pisano, G.; Colafrancesco, S.; Maffei, B.; Ng, M. W. R.; Gray, M.. - In: APPLIED OPTICS. - ISSN 1559-128X. - 52:4(2013), pp. 635-639. [10.1364/AO.52.000635]
Q-plate for millimeter-wave orbital angular momentum manipulation
Pisano G.;
2013
Abstract
q-plates are quasi-optical devices specifically designed to generate and detect the orbital angular momentum states of the light. It is possible to produce q-plates working at millimeter wavelengths by using a well-known and cheap manufacturing technique. The technique consists of creating inhomogeneous, artificial birefringent materials by machining grooves with specific geometries into normal dielectric materials. In this work, a q-plate working around 100 GHz has been designed, manufactured, and tested using a vector network analyzer. The experimental data validate the modeled intensity and phase for the transformation of an incident Gaussian beam. © 2013 Optical Society of America.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
