4.2 Article

Evaluating the spectral sensitivity of the nonlinear-optical terahertz wave radiation detecors via spontaneous parametric down-conversion spectra

Journal

OPTICS AND SPECTROSCOPY
Volume 116, Issue 4, Pages 520-528

Publisher

MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0030400X14040158

Keywords

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Funding

  1. Russian Foundation for Basic Research [13-02-00151, 12-02-12034, 11-02-01074]
  2. Ministry of Education and Science of Russian Federation [8393]

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Principal parameters of the nonlinear-optical crystals are analyzed, which govern the spectral sensitivity of the terahertz wave detectors based on the frequency conversion from terahertz to optical range. A method is developed and experimentally demonstrated for characterizing these parameters. The method is founded on the spontaneous parametric down-conversion spectra observation without external terahertz wave radiation.

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