Unidirectional and topological surface plasmon polaritons are currently attracting substantial interest and intense debate. Realistic material models and energy conservation considerations are essential to correctly understand extreme wave effects in non-reciprocal plasmonics, and to assess their potential for novel devices.

中文翻译：

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表面等离子激元的真正单向通道

单向和拓扑表面等离激元极化子目前引起了广泛的兴趣和激烈的争论。现实的材料模型和节能方面的考虑对于正确理解非互易等离子体激元中的极端波效应以及评估其在新型设备中的潜力至关重要。