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  • Editor: Alan E. Willner
  • Vol. 36, Iss. 14 — Jul. 15, 2011
  • pp: 2662–2664

THz pulse shaping and improved optical-to-THz conversion efficiency using a binary phase mask

Xavier Ropagnol, Roberto Morandotti, Tsuneyuki Ozaki, and Matt Reid  »View Author Affiliations


Optics Letters, Vol. 36, Issue 14, pp. 2662-2664 (2011)
http://dx.doi.org/10.1364/OL.36.002662


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Abstract

We demonstrate improved optical-to-terahertz (THz) conversion efficiency and THz pulse shaping from an interdigitated GaAs large area photoconductive antenna by using a binary phase mask. The binary phase mask results in a time-delayed excitation of the adjacent antennas, which allows subsequent antennas to produce an additive field, thus resulting in a quasi-single-cycle THz pulse. We demonstrate control over the temporal profile of the THz waveform to maximize optical-to-THz conversion efficiency.

© 2011 Optical Society of America

OCIS Codes
(130.5990) Integrated optics : Semiconductors
(230.6080) Optical devices : Sources
(250.0250) Optoelectronics : Optoelectronics
(260.3090) Physical optics : Infrared, far

ToC Category:
Physical Optics

History
Original Manuscript: April 11, 2011
Manuscript Accepted: May 30, 2011
Published: July 13, 2011

Citation
Xavier Ropagnol, Roberto Morandotti, Tsuneyuki Ozaki, and Matt Reid, "THz pulse shaping and improved optical-to-THz conversion efficiency using a binary phase mask," Opt. Lett. 36, 2662-2664 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-14-2662


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