Tabletop Tunable Chiral Photonic Emitter,Physical Review Letters

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Tabletop Tunable Chiral Photonic Emitter
Physical Review Letters ( IF 8.1 ) Pub Date : 2024-09-11 , DOI: 10.1103/physrevlett.133.113804
Lu Wang ₁ , Marcelo Fabián Ciappina _{2,

2,

3,

4} , Thomas Brabec ₅ , XiaoJun Liu ₁

Affiliation

The increasing interest in chiral light stems from its spiral trajectory along the propagation direction, facilitating the interaction between different polarization states of light and matter. Despite tremendous achievements in chiral light-related research, the generation and control of chiral pulses have presented enduring challenges, especially at the terahertz and ultraviolet spectral ranges, due to the lack of suitable optical elements for effective pulse manipulation. Conventionally, chiral light can be obtained from intricate optical systems, by an external magnetic field, or by metamaterials, which necessitate sophisticated optical configurations. Here, leveraging the high harmonic generation process, we propose a versatile tunable chiral emitter, composed of only two planar Weyl semimetals slabs, addressing the challenges in both spectral ranges. Our results open the way to a compact tunable chiral emitter platform in both terahertz and ultra-violet frequency ranges. This advancement holds the potential to serve as the cornerstone for integrated chiral photonics.

中文翻译：

桌面可调谐手性光子发射器

人们对手性光越来越感兴趣，因为它沿着传播方向的螺旋轨迹，促进了光和物质不同偏振态之间的相互作用。尽管手性光相关研究取得了巨大成就，但由于缺乏用于有效脉冲操纵的合适光学元件，手性脉冲的产生和控制仍然面临着持久的挑战，特别是在太赫兹和紫外光谱范围内。传统上，手性光可以通过外部磁场或超材料从复杂的光学系统获得，这需要复杂的光学配置。在这里，利用高谐波生成过程，我们提出了一种多功能可调谐手性发射器，仅由两个平面韦尔半金属板组成，解决了两个光谱范围的挑战。我们的研究结果为太赫兹和紫外线频率范围内的紧凑型可调谐手性发射器平台开辟了道路。这一进步有可能成为集成手性光子学的基石。

更新日期：2024-09-12

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