[10] Zdagkas A, Shen YJ, McDonnell C, Deng J, Li G et al. Observation of toroidal pulses of light. arXiv: 2102.03636 (2021).
[38] Boyd RW. NonlinearOptics 3rd ed (Elsevier, Oxford, 2008).
[39] Murti YVGS, Vijayan C. EssentialsofNonlinearOptics (John Wiley & Sons, New York, 2014).
[40] Shen YR. ThePrinciplesofNonlinearOptics (John Wiley & Sons, New York, 1984).
[123] Dmitriev VG, Gurzadyan GG, Nikogosyan DN. HandbookofNonlinearOpticalCrystals 2nd ed (Springer, Berlin, 1997).
[234] Sephton B, Vallés A, Nape I, Cox MA, Steinlechner F et al. High-dimensional spatial teleportation enabled by nonlinear optics. arXiv: 2111.13624, 2021.
