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Quantum correlation between optical and terahertz photons generated under multimode spontaneous parametric down-conversionстатья Исследовательская статья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 17 июня 2020 г.
- Авторы: Kitaeva G.Kh, Leontyev A.A., Prudkovskii P.A.
- Журнал: Physical Review A - Atomic, Molecular, and Optical Physics
- Том: 101
- Номер: 5
- Год издания: 2020
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 053810-1
- Последняя страница: 053810-13
- DOI: 10.1103/PhysRevA.101.053810
- Аннотация: We study conditions for the generation of strongly correlated photons of two extremely different frequency ranges, optical and terahertz, via the spontaneous parametric down-conversion effect in a nonlinear medium. Analytical expressions for the correlation function are derived using equations of the generalized Kirchhoff law for the second-order field moments with account of both classical thermal and quantum vacuum field fluctuations, possible inherent absorption of the medium at terahertz frequencies, and angular divergences of signal and idler radiation caused by a transverse limited spatial profile of the Gaussian pump beam. Associated with the current absence of terahertz photon counting detectors and coincidence schemes, the possible experimental limitations in measuring the second-order optical-terahertz field correlations are studied. Numerical calculations of noncollinear eee-geometry parametric down-conversion in a Mg:LiNbO3 crystal demonstrate angular characteristics, particular features of the temperature and spectral behavior of the second-order quantum correlation function of optical-terahertz biphotons.
- Добавил в систему: Прудковский Павел Андреевич