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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 13 — May. 1, 2008
  • pp: 2382–2385

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

T. D. Drysdale, E. D. Walsby, and D. R. S. Cumming  »View Author Affiliations


Applied Optics, Vol. 47, Issue 13, pp. 2382-2385 (2008)
http://dx.doi.org/10.1364/AO.47.002382


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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 μm period and was characterized at 94 GHz in a free-space measurement setup with an automated elevation scan. Plate tilts as great as 6° deflected the transmitted beam by 6° for the transverse electric (TE) polarization and by 4° for the transverse magnetic polarization. Finite-difference time-domain simulations of the TE performance were in good agreement with the measurements.

© 2008 Optical Society of America

OCIS Codes
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(230.3990) Optical devices : Micro-optical devices
(260.1440) Physical optics : Birefringence
(350.4010) Other areas of optics : Microwaves

ToC Category:
Optical Devices

History
Original Manuscript: October 22, 2007
Revised Manuscript: March 19, 2008
Manuscript Accepted: March 19, 2008
Published: April 28, 2008

Citation
T. D. Drysdale, E. D. Walsby, and D. R. S. Cumming, "Measured and simulated performance of a ceramic micromechanical beam steering device at 94 GHz," Appl. Opt. 47, 2382-2385 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-13-2382

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