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Title: Effective terahertz-to-near-infrared photon conversion in slant-stripe-type periodically poled LiNbO{sub 3}

We propose a slant-stripe-type periodically poled LiNbO{sub 3} crystal for the construction of a practical quasi-phase-matched (QPM) device for terahertz (THz) detection. A minimum detectable THz-wave energy of 25 fJ/pulse is demonstrated, and a linear input-output property with a dynamic range of 60 dB is achieved. The working frequency range of 0.15 THz for THz detection is obtained, and the central frequency of the sensitivity can be controlled by the design of the periodically poled structure. THz detection using this QPM device is a promising technique that may allow the detection of a coherent THz photon.
Authors:
; ; ; ; ; ;  [1] ; ;  [2]
  1. Tera-Photonics Laboratory, RIKEN Center for Advanced Photonics, 519-1399 Aramakiaoba, Aoba, Sendai 980-0845 (Japan)
  2. Laser Research Center for Molecular Science, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585 (Japan)
Publication Date:
OSTI Identifier:
22283027
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CRYSTALS; ENERGY CONVERSION; LITHIUM COMPOUNDS; NIOBATES; PERIODICITY; PHOTONS; RADIATION DETECTION; SENSITIVITY; THZ RANGE