集成原子级薄片的纳米腔中模式位移的量子化
Quantization of mode shifts in nanocavities integrated with atomically thin sheets
AI总结：
本文研究二维材料与硅光子晶体纳米梁腔的集成，发现少层薄片因原子级精确厚度导致模式位移量子化，并实现腔体灵活重构，为二维材料集成光子器件提供新思路。
摘要：
二维层状材料独特的光学性质对于在集成光子学中实现增强功能具有吸引力。由于范德瓦耳斯特性，这些材料非常适合与纳米尺度光子结构集成。本文报道了精心设计的空气模式硅光子晶体纳米梁腔，用于通过二维材料实现高效调控。通过系统研究不同类型和厚度的二维材料，我们能够证明增强的响应度使得谐振波长产生巨大位移。由于在宏观面积上具有原子级精确的厚度，少层薄片导致模式位移出现量子化。我们提取了薄片的介电常数，并发现其与层数无关，直至单层仍保持恒定。通过堆叠和移除超薄薄片，展示了腔体的灵活重构。凭借非常规的腔体设计，我们的结果为集成二维材料的光子器件开辟了新的可能性。
英文摘要：
The unique optical properties of two-dimensional layered materials are attractive for achieving increased functionality in integrated photonics. Owing to the van der Waals nature, these materials are ideal for integrating with nanoscale photonic structures. Here we report on carefully designed air-mode silicon photonic crystal nanobeam cavities for efficient control through two-dimensional materials. By systematically investigating various types and thickness of two-dimensional materials, we are able to show that enhanced responsivity allows for giant shifts of the resonant wavelength. With atomically precise thickness over a macroscopic area, few-layer flakes give rise to quantization of the mode shifts. We extract the dielectric constant of the flakes and find that it is independent of the layer number down to a monolayer. Flexible reconfiguration of a cavity is demonstrated by stacking and removing ultrathin flakes. With an unconventional cavity design, our results open up new possibilities for photonic devices integrated with two-dimensional materials.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
