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Abstract <p>The problem of enhancing the efficiency of detecting radiation in the long-wavelength part of the optical spectrum is considered. The second-harmonic generation in two-dimensional photonic crystals based on iodic acid is investigated in order to convert long-wave radiation into the visible range for subsequent detection by conventional silicon detectors. The problems of synthesis of two-dimensional photonic crystal structures for practical problems of nonlinear optics and photonics are discussed.</p>

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Quasi-Phase-Matched Second-Harmonic Generation in Photonic Crystal Structures Based on Iodic Acid

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • A. A. Konovko,
  • A. V. Andreev,
  • V. V. Berezkin,
  • Yu. V. Grigoriev,
  • N. M. R. Kriman,
  • M. V. Reshetova,
  • N. V. Minaev,
  • E. O. Epifanov,
  • V. E. Asadchikov

摘要

Abstract

The problem of enhancing the efficiency of detecting radiation in the long-wavelength part of the optical spectrum is considered. The second-harmonic generation in two-dimensional photonic crystals based on iodic acid is investigated in order to convert long-wave radiation into the visible range for subsequent detection by conventional silicon detectors. The problems of synthesis of two-dimensional photonic crystal structures for practical problems of nonlinear optics and photonics are discussed.