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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 14 — Jul. 15, 2008
  • pp: 1593–1595

Rapid-phase modulation of terahertz radiation for high-speed terahertz imaging and spectroscopy

Alexander M. Sinyukov, Zhiwei Liu, Yew Li Hor, Ke Su, Robert B. Barat, Dale E. Gary, Zoi-Heleni Michalopoulou, Ivan Zorych, John F. Federici, and David Zimdars  »View Author Affiliations


Optics Letters, Vol. 33, Issue 14, pp. 1593-1595 (2008)
http://dx.doi.org/10.1364/OL.33.001593


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Abstract

Rapid voltage-controlled phase modulation of cw terahertz (THz) radiation is demonstrated. By transmitting an infrared beam through a lithium niobate phase modulator the phase of the THz radiation, which is generated by the photomixing of two infrared beams, can be directly modulated through a 2 π phase shift. The 100 kHz modulation rate that is demonstrated with this technique is approximately 3 orders of magnitude faster than what can be achieved by mechanical scanning.

© 2008 Optical Society of America

OCIS Codes
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(300.6495) Spectroscopy : Spectroscopy, teraherz
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: April 18, 2008
Revised Manuscript: June 9, 2008
Manuscript Accepted: June 15, 2008
Published: July 11, 2008

Citation
Alexander M. Sinyukov, Zhiwei Liu, Yew Li Hor, Ke Su, Robert B. Barat, Dale E. Gary, Zoi-Heleni Michalopoulou, Ivan Zorych, John F. Federici, and David Zimdars, "Rapid-phase modulation of terahertz radiation for high-speed terahertz imaging and spectroscopy," Opt. Lett. 33, 1593-1595 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-14-1593


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References

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