Institute of Photonics, National Tsing-Hua University, Hsinchu City 300, Taiwan.
Opt Lett. 2009 Oct 1;34(19):2982-4. doi: 10.1364/OL.34.002982.
We analyze stability of the TM polarized optical solitons and nonlinear guided waves localized at a metal-dielectric interface. We demonstrate, both analytically and numerically, that the spatial solitons can experience vectorial transverse modulational instability that leads to the generation of arrays of two-dimensional TM polarized self-trapped localized beams. In a sharp contrast, we reveal that the transverse instability is completely eliminated for nonlinear surface plasmons.
我们分析了在金属-电介质界面处局域的 TM 偏振光孤子和非线性导波的稳定性。我们通过理论和数值分析表明，空间孤子可能会经历矢量横向调制不稳定性，从而导致二维 TM 偏振自陷局域光束的产生。与此形成鲜明对比的是，我们揭示了非线性表面等离激元的横向不稳定性完全消除。
