Zhenjuan LIU, Haohao WANG, Yanan DAI, Zhiqing ZHANG, Yishan WANG, Xinyuan QI. Bifurcation-tunable Diffractionless Light Propagation in One-dimensional Non-Hermitian Photonic Lattice[J]. Acta Photonica Sinica, 2021, 50(4): 128
- Acta Photonica Sinica
- Vol. 50, Issue 4, 128 (2021)
Fig. 1. Schematic diagram of one dimensional compound photonic lattice and effective model
Fig. 2. Band structure and group velocity of the one-dimensional photonic lattice with different modulation phase ϕ and next-nearest coupling κ
Fig. 3. Light evolution with different incident wave vectors k and the effects of coupling J on angles between two non-diffraction branches
Fig. 4. Light bifurcation with different incident wave vectors modulated by modulation phase ϕ
Fig. 5. Energy ratio controlled by next-nearest couplings κ o and κ e
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