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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 20 — Sep. 24, 2012
  • pp: 22914–22921

Terahertz beam steering using interference of femtosecond optical pulses

Koji Uematsu, Ken-ichiro Maki, and Chiko Otani  »View Author Affiliations


Optics Express, Vol. 20, Issue 20, pp. 22914-22921 (2012)
http://dx.doi.org/10.1364/OE.20.022914


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Abstract

A terahertz (THz) beam steering method is demonstrated by applying the characteristic of grating lobe (GL) radiation from a linear array antenna and the interference of femtosecond optical pulses. A photoconductive device is illuminated by two femtosecond laser beams combined at an angle of less than 0.5°. Considering the interference pattern as a THz point source array, THz GL radiation is generated through the superposition of radiation emitted from all point sources and steered by varying the interval of the interference pattern. The THz beam direction could be changed by 20° at 0.93THz by varying the relative incidence angle of the pump beams by 0.033°.

© 2012 OSA

OCIS Codes
(110.5100) Imaging systems : Phased-array imaging systems
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Imaging Systems

History
Original Manuscript: June 20, 2012
Revised Manuscript: August 31, 2012
Manuscript Accepted: September 1, 2012
Published: September 21, 2012

Citation
Koji Uematsu, Ken-ichiro Maki, and Chiko Otani, "Terahertz beam steering using interference of femtosecond optical pulses," Opt. Express 20, 22914-22921 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-20-22914


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References

  1. K. Kawase, Y. Ogawa, Y. Watanabe, and H. Inoue, “Non-destructive terahertz imaging of illicit drugs using spectral fingerprints,” Opt. Express11(20), 2549–2554 (2003). [CrossRef] [PubMed]
  2. W. L. Chan, J. Deibel, and D. M. Mittleman, “Imaging with terahertz radiation,” Rep. Prog. Phys.70(8), 1325–1379 (2007). [CrossRef]
  3. J. B. Jackson, M. Mourou, J. F. Whitaker, I. N. Duling, S. L. Williamson, M. Menu, and G. A. Mourou, “Terahertz imaging for non-destructive evaluation of mural paintings,” Opt. Commun.281(4), 527–532 (2008). [CrossRef]
  4. J. F. Federici, B. Schulkin, F. Huang, D. Gary, R. Barat, F. Oliveira, and D. Zimdars, “THz imaging and sensing for security applications - explosives, weapons and drugs,” Semicond. Sci. Technol.20(7), S266–S280 (2005). [CrossRef]
  5. N. Oda, “Uncooled bolometer-type terahertz focal plane array and camera for real-time imaging,” C. R. Phys.11(7-8), 496–509 (2010). [CrossRef]
  6. T. Yasuda, T. Yasui, T. Araki, and E. Abraham, “Real-time two-dimensional terahertz tomography of movingobjects,” Opt. Commun.267(1), 128–136 (2006). [CrossRef]
  7. B. Recur, A. Younus, S. Salort, P. Mounaix, B. Chassagne, P. Desbarats, J.-P. Caumes, and E. Abraham, “Investigation on reconstruction methods applied to 3D terahertz computed tomography,” Opt. Express19(6), 5105–5117 (2011). [CrossRef] [PubMed]
  8. Martin Koch, “Terahertz Communications: A 2020 vision,” in Terahertz Frequency Detection and Identification of Materials and Objects, R. E. Miles, X. -C. Zhang, H. Eisele and A. Krotkus, ed. (Springer 2007).
  9. H.-T. Chen, W. J. Padilla, M. J. Cich, A. K. Azad, R. D. Averitt, and A. J. Taylor, “A metamaterial solid- state terahertz phase modulator,” Nat. Photonics3(3), 148–151 (2009). [CrossRef]
  10. N. M. Froberg, B. B. Hu, X.-C. Zhang, and D. H. Auston, “Terahertz radiation from a photoconducting antenna array,” IEEE J. Quantum Electron.28(10), 2291–2301 (1992). [CrossRef]
  11. K. Maki and C. Otani, “Terahertz beam steering and frequency tuning by using the spatial dispersion of ultrafast laser pulses,” Opt. Express16(14), 10158–10169 (2008). [CrossRef] [PubMed]
  12. M. Tani, S. Matsuura, K. Sakai, and S. Nakashima, “Emission characteristics of photoconductive antennas based on low-temperature-grown GaAs and semi-insulating GaAs,” Appl. Opt.36(30), 7853–7859 (1997). [CrossRef] [PubMed]
  13. D. H. Auston and M. C. Nuss, “Electrooptical generation and detection of femtosecond electrical transients,” IEEE J. Quantum Electron.24(2), 184–197 (1988). [CrossRef]
  14. J. Ahn, A. V. Efimov, R. D. Averitt, and A. J. Taylor, “Terahertz waveform synthesis via optical rectification of shaped ultrafast laser pulses,” Opt. Express11(20), 2486–2496 (2003). [CrossRef] [PubMed]

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