QUASI-SYNCHRONOUS SECOND HARMONIC GENERATION IN PHOTONIC CRYSTAL STRUCTURES BASED ON IODIC ACID

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