论文标题
具有原子大小相模式的单层过渡金属二分法中新的光学共振的出现
Emergence of new optical resonances in single-layer transition metal dichalcogenides with atomic-size phase patterns
论文作者
论文摘要
光结合相互作用的原子级控制代表了光子学和量子技术中许多应用的最终边界。二维半导体（包括过渡金属二核苷）是一个有前途的平台，可以通过原子薄的几何形状和方便的光物理特性组合来实现这种控制。在这里，我们证明可以将多种耐用的多态性结构组合在一起，以产生超出标准激子以外的其他光学共振。我们从理论上预测并在实验上表明，1H基质中1T相的原子尺寸斑块形成了独特的电子带，从而产生具有强大吸收，圆形极化的发射和长辐射寿命的新型和稳健的光学共振。二维半导体的原子操作为轻型收集设备和基于激子的光子学开辟了未开发的场景。
Atomic-scale control of light-matter interactions represent the ultimate frontier for many applications in photonics and quantum technology. Two-dimensional semiconductors, including transition metal dichalcogenides, are a promising platform to achieve such control due to the combination of an atomically thin geometry and convenient photophysical properties. Here, we demonstrate that a variety of durable polymorphic structures can be combined to generate additional optical resonances beyond the standard excitons. We theoretically predict and experimentally show that atomic-sized patches of 1T phase within the 1H matrix form unique electronic bands that give rise to new and robust optical resonances with strong absorption, circularly polarized emission and long radiative lifetime. The atomic manipulation of two-dimensional semiconductors opens unexplored scenarios for light harvesting devices and exciton-based photonics.
