论文标题
高分辨率光谱计量学利用纤维中拓扑增强的光学活性
High Resolution Spectral Metrology Leveraging Topologically Enhanced Optical Activity in Fibers
论文作者
论文摘要
光学旋转是一种光学活性的一种形式，是一种用于化学，食品和药物在内的各种计量应用和行业中采用的现象。然而，在自然出现以及结构化培养基中，综合效应通常很小。在这里，我们证明，通过利用轨道角动量纤维模式的固有且稳定的自旋轨道相互作用，可以获得巨大的，可伸缩的光学活性，并且我们可以利用这种效果来实现一种新型的波仪，通过利用其光学旋转分散体。我们构建的设备提供了具有高分辨率功率$ r = 3.4 \ times 10^6 $的瞬时波长测量技术（即分辨率$ <0.3 pm $ <0.3 pm $ $ 1-μm$波长），还可以检测具有高敏感性的已知线路的光谱带宽。
Optical rotation, a form of optical activity, is a phenomenon employed in various metrological applications and industries including chemical, food, and pharmaceutical. In naturally-occurring, as well as structured media, the integrated effect is, however, typically small. Here, we demonstrate that, by exploiting the inherent and stable spin-orbit interaction of orbital angular momentum fiber modes, giant, scalable optical activity can be obtained, and that we can use this effect to realize a new type of wavemeter by exploiting its optical rotary dispersion. The device we construct provides for an instantaneous wavelength-measurement technique with high resolving power $R =3.4 \times 10^6$ (i.e. resolution $< 0.3 pm$ at $1-μm$ wavelengths) and can also detect spectral bandwidths of known lineshapes with high sensitivity.
