A monoclinic semiorganic molecular crystal GUHP for terahertz photonics and optoelectronics

Anton Sinko, Peter Solyankin, Aleksey Kargovsky, Vera Manomenova, Elena Rudneva, Natalia Kozlova, Natalia Sorokina, Fedor Minakov, Sergei Kuznetsov, Nazar Nikolaev, Nikolay Surovtsev, Ilya Ozheredov, Alexey Voloshin, Alexander Shkurinov

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование


In this paper we describe the properties of the crystal of guanylurea hydrogen phosphate (NH2)2CNHCO(NH2)H2PO3 (GUHP) and propose its application in terahertz photonics and optoelectronics. GUHP crystal has a wide window of transparency and a high optical threshold in the visible and NIR spectral regions and narrow absorption bands in the terahertz frequency range. The spectral characteristics of absorption and refraction in the THz range were found to be strongly dependent on crystal temperature and orientation. Computer simulations made it possible to link the nature of the resonant response of the medium at THz frequencies with the molecular structure of the crystal, in particular, with intermolecular hydrogen bonds and the layered structure of the lattice. The possibility of application of the crystal under study for the conversion of femtosecond laser radiation from visible an NIR to terahertz range was demonstrated. It was shown that dispersion properties of the crystal allow the generation of narrow band terahertz radiation, whose spectral properties are determined by conditions close to phase matching. The properties of the generated terahertz radiation under various temperatures suggest the possibility of phonon mechanism of enhancement for nonlinear susceptibility of the second order.

Язык оригиналаанглийский
Номер статьи23433
ЖурналScientific Reports
Номер выпуска1
СостояниеОпубликовано - дек. 2021

Предметные области OECD FOS+WOS



Подробные сведения о темах исследования «A monoclinic semiorganic molecular crystal GUHP for terahertz photonics and optoelectronics». Вместе они формируют уникальный семантический отпечаток (fingerprint).