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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 4 — Feb. 25, 2013
  • pp: 5198–5208

Electronically controlled optical beam-steering by an active phased array of metallic nanoantennas

C. T. DeRose, R. D. Kekatpure, D. C. Trotter, A. Starbuck, J. R. Wendt, A. Yaacobi, M. R. Watts, U. Chettiar, N. Engheta, and P. S. Davids  »View Author Affiliations


Optics Express, Vol. 21, Issue 4, pp. 5198-5208 (2013)
http://dx.doi.org/10.1364/OE.21.005198


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Abstract

An optical phased array of nanoantenna fabricated in a CMOS compatible silicon photonics process is presented. The optical phased array is fed by low loss silicon waveguides with integrated ohmic thermo-optic phase shifters capable of 2π phase shift with ∼ 15 mW of applied electrical power. By controlling the electrical power to the individual integrated phase shifters fixed wavelength steering of the beam emitted normal to the surface of the wafer of 8° is demonstrated for 1 × 8 phased arrays with periods of both 6 and 9 μm.

© 2013 OSA

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(050.1960) Diffraction and gratings : Diffraction theory
(230.0230) Optical devices : Optical devices
(240.6690) Optics at surfaces : Surface waves
(240.3990) Optics at surfaces : Micro-optical devices

ToC Category:
Diffraction and Gratings

History
Original Manuscript: January 3, 2013
Revised Manuscript: February 12, 2013
Manuscript Accepted: February 17, 2013
Published: February 22, 2013

Citation
C. T. DeRose, R. D. Kekatpure, D. C. Trotter, A. Starbuck, J. R. Wendt, A. Yaacobi, M. R. Watts, U. Chettiar, N. Engheta, and P. S. Davids, "Electronically controlled optical beam-steering by an active phased array of metallic nanoantennas," Opt. Express 21, 5198-5208 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-4-5198


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