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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 8 — Apr. 15, 2014
  • pp: 2511–2513

Voltage-controlled liquid-crystal terahertz phase shifter with indium–tin–oxide nanowhiskers as transparent electrodes

Chan-Shan Yang, Tsung-Ta Tang, Po-Han Chen, Ru-Pin Pan, Peichen Yu, and Ci-Ling Pan  »View Author Affiliations


Optics Letters, Vol. 39, Issue 8, pp. 2511-2513 (2014)
http://dx.doi.org/10.1364/OL.39.002511


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Abstract

Indium–tin–oxide nanowhiskers were employed as transparent electrodes in a liquid-crystal terahertz phase shifter. Transmittance of the device was as high as 75%. Phase shift exceeding π/2 at 1.0 THz is achieved in a 500μm-thick cell. The driving voltage required for the device operating as a quarter-wave plate was as low as 17.68 V (rms), an improvement of nearly an order of magnitude over previous work.

© 2014 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(230.3720) Optical devices : Liquid-crystal devices
(260.1440) Physical optics : Birefringence
(160.4236) Materials : Nanomaterials
(300.6495) Spectroscopy : Spectroscopy, teraherz
(310.7005) Thin films : Transparent conductive coatings

ToC Category:
Thin Films

History
Original Manuscript: February 21, 2014
Manuscript Accepted: March 18, 2014
Published: April 15, 2014

Citation
Chan-Shan Yang, Tsung-Ta Tang, Po-Han Chen, Ru-Pin Pan, Peichen Yu, and Ci-Ling Pan, "Voltage-controlled liquid-crystal terahertz phase shifter with indium–tin–oxide nanowhiskers as transparent electrodes," Opt. Lett. 39, 2511-2513 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-8-2511


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