H. Li, A. Mekawy, A. Krasnok, and A. Alù, “Virtual Parity-Time Symmetry,” Physical Review Letters, Vol. 124, No. 19, 193901 (2020).
H. Li, A. Mekawy, A. Krasnok, and A. Alù, “Virtual Parity-Time Symmetry,” Physical Review Letters, Vol. 124, No. 19, 193901 (2020).