Measured and simulated performance of a ceramic micromechanical beam steering device at 94 GHz

Drysdale, T. D., Walsby, E. D. and Cumming, D. R. S. (2008) Measured and simulated performance of a ceramic micromechanical beam steering device at 94 GHz. Applied Optics, 47(13), pp. 2382-2385. (doi: 10.1364/AO.47.002382)

Abstract

We report the first experimental demonstration of a transmission-mode micromechanical beam steering device for use in standoff terahertz imaging and spectroscopy. The device was constructed by laminating laser-cut 96% alumina sheets to form two plates with interlocking rectangular gratings of 762 mu m period and was characterized at 94 GHz in a free-space measurement setup with an automated elevation scan. Plate tilts as great as 6 degrees deflected the transmitted beam by 6 degrees for the transverse electric (TE) polarization and by 4 degrees for the transverse magnetic polarization. Finite-difference time-domain simulations of the TE performance were in good agreement with the measurements. (C) 2008 Optical Society of America

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Cumming, Professor David and Drysdale, Dr Timothy and Walsby, Mr Edward
• Authors: Drysdale, T. D., Walsby, E. D., and Cumming, D. R. S.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Applied Optics
• ISSN: 0003-6935