4.6 Article

Terahertz generation based on parametric conversion: from saturation of conversion efficiency to back conversion

Journal

OPTICS LETTERS
Volume 36, Issue 9, Pages 1608-1610

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OL.36.001608

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Funding

  1. National Science Foundation (NSF) [ECCS-0925054]
  2. Directorate For Engineering
  3. Div Of Electrical, Commun & Cyber Sys [0925054] Funding Source: National Science Foundation

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By stacking alternatively rotated gallium phosphide (GaP) plates, the maximum photon conversion efficiency of 40% for the terahertz (THz) generation based on difference-frequency generation has been achieved. The corresponding peak power generated inside the four GaP plates approaches 4 kW. As the number of plates is increased from four to five, the THz output power is significantly decreased, due to back parametric conversion. (C) 2011 Optical Society of America

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