A micromechanical beam-steering device for terahertz systems

Drysdale, T.D. and Cumming, D.R.S. (2004) A micromechanical beam-steering device for terahertz systems. In: Proceedings of SPIE, London, UK, 27 October 2004, pp. 147-153. (doi: 10.1117/12.578303)

Abstract

Beam-steering techniques are required to fully exploit terahertz imaging systems. We propose and model a device employing artificial dielectric techniques to provide a variable phase-control medium. The device consists of two interlocking artificial dielectric surfaces that are initially aligned parallel to each other. By mechanically introducing a relative tilt between the plates, a transmitted wave is subjected to a graded phase delay and thus the beam is steered away from the normal. Continuous and large steering angles are possible. We predict a practical device constructed from a silicon substrate could steer TE beams by up to 4.6 degrees.

• Item Type: Conference Proceedings
• Additional Information: Copyright 2004 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE 5619:147-153 and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
• Keywords: Device, optics, system, systems, terahertz
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Cumming, Professor David and Drysdale, Dr Timothy
• Authors: Drysdale, T.D., and Cumming, D.R.S.
• Subjects: Q Science > QC Physics; T Technology > T Technology (General)
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Publisher: SPIE
• ISSN: 0277-786X
• Copyright Holders: Copyright © 2004 SPIE
• First Published: First published in Proceedings of SPIE 5619:147-153
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher