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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 9 — Apr. 27, 2009
  • pp: 7377–7382

Liquid crystal based electrically switchable Bragg structure for THz waves

Rafał Wilk, Nico Vieweg, Olaf Kopschinski, and Martin Koch  »View Author Affiliations


Optics Express, Vol. 17, Issue 9, pp. 7377-7382 (2009)
http://dx.doi.org/10.1364/OE.17.007377


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Abstract

We demonstrate the first electronically switchable Bragg structure for THz frequencies. The structure works as stop-band filter and as mirror. It exhibits the 60 GHz broad stop-band around 300 GHz which can be removed by reorienting liquid crystal molecules in an external electric field. Our first proof-of-principle experiments agree very well with transfer matrix calculations.

© 2009 Optical Society of America

OCIS Codes
(230.1480) Optical devices : Bragg reflectors
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Optical Devices

History
Original Manuscript: March 20, 2009
Revised Manuscript: April 17, 2009
Manuscript Accepted: April 17, 2009
Published: April 20, 2009

Citation
Rafal Wilk, Nico Vieweg, Olaf Kopschinski, and Martin Koch, "Liquid crystal based electrically switchable Bragg structure for THz waves," Opt. Express 17, 7377-7382 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-9-7377


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References

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