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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 22 — Nov. 15, 2007
  • pp: 3248–3250

Optical detection of terahertz radiation by using nonlinear parametric upconversion

M. Jalal Khan, Jerry C. Chen, and Sumanth Kaushik  »View Author Affiliations


Optics Letters, Vol. 32, Issue 22, pp. 3248-3250 (2007)
http://dx.doi.org/10.1364/OL.32.003248


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Abstract

We describe and demonstrate sensitive room-temperature detection of terahertz (THz) radiation by nonlinearly upconverting terahertz to the near-infrared regime, relying on telecommications components. THz radiation at 700 GHz is mixed with pump light at 1550 nm in a bulk GaAs crystal to generate an idler wave at 1555.6 nm , which is separated and detected by using a commercial p - i - n diode. The THz detector operates at room temperature and has an intrinsic THz-to-optical photon conversion efficiency of 0.001%.

© 2007 Optical Society of America

OCIS Codes
(040.0040) Detectors : Detectors
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.7220) Nonlinear optics : Upconversion
(230.4320) Optical devices : Nonlinear optical devices

ToC Category:
Nonlinear Optics

History
Original Manuscript: July 2, 2007
Revised Manuscript: October 2, 2007
Manuscript Accepted: October 3, 2007
Published: November 1, 2007

Citation
M. Jalal Khan, Jerry C. Chen, and Sumanth Kaushik, "Optical detection of terahertz radiation by using nonlinear parametric upconversion," Opt. Lett. 32, 3248-3250 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-22-3248

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