Title

Transmissive beam steering through electrowetting microprism arrays

Author

Wei Han

Date of Award

2009

Degree Name

M.S. in Electro-Optics

Department

Department of Electro-Optics and Photonics

Advisor/Chair

Advisor: Joseph W. Haus

Abstract

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.

Keywords

Antenna arrays, Beam optics

Rights Statement

Copyright 2009, author

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