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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 8 — Apr. 15, 2014
  • pp: 2435–2438

Shot noise reduced terahertz detection via spectrally postfiltered electro-optic sampling

Michael Porer, Jean-Michel Ménard, and Rupert Huber  »View Author Affiliations

Optics Letters, Vol. 39, Issue 8, pp. 2435-2438 (2014)

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In ultrabroadband terahertz electro-optic sampling (EOS), spectral filtering of the gate pulse can strongly reduce the quantum noise while the signal level is only weakly affected. The concept is tested for phase-matched electro-optic detection of field transients centered at 45 THz with 12 fs near-infrared gate pulses in AgGaS2. Our new approach increases the experimental signal-to-noise ratio by a factor of 3 compared to standard EOS. Under certain conditions an improvement factor larger than 5 is predicted by our theoretical analysis.

© 2014 Optical Society of America

OCIS Codes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(040.2235) Detectors : Far infrared or terahertz
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:

Original Manuscript: February 17, 2014
Manuscript Accepted: March 12, 2014
Published: April 10, 2014

Michael Porer, Jean-Michel Ménard, and Rupert Huber, "Shot noise reduced terahertz detection via spectrally postfiltered electro-optic sampling," Opt. Lett. 39, 2435-2438 (2014)

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