Transmissive beam steering through electrowetting microprism arrays
Date of Award
M.S. in Electro-Optics
Department of Electro-Optics and Photonics
Advisor: Joseph W. Haus
In this study, the electrowetting phenomenon is reviewed and two types of Electrowetting Microprism (EMP) beam steering devices are proposed and theoretically characterized: single-prism and bi-prism EMP arrays. For this thesis, an extended beam propagation method is used and numerical calculations of near-field and far-field intensities are performed for both designs. I investigated both one-dimensional and two-dimensional versions of the EMP arrays and determine the beam steering efficiency for both 1D and 2D cases using an incident Gaussian beam. For the phased arrays the diffraction angles are discrete due to the well known grating effect. The angles between the diffraction peaks can be covered by applying a tilted phase to the input field. The efficiency is measured over continuously changed far-field angles for different situations.
Antenna arrays, Beam optics
Copyright 2009, author
Han, Wei, "Transmissive beam steering through electrowetting microprism arrays" (2009). Graduate Theses and Dissertations. 237.