论文标题
通过局部变化的范德 - 瓦尔人异质结构中的光 - 物质耦合的局部变化来证明极化步骤的潜力
Demonstration of a polariton step potential by local variation of light-matter coupling in a van-der-Waals heterostructure
论文作者
论文摘要
过渡金属二甲基化层中激素的较大振荡器强度有助于形成嵌入光学微腔中的单层和范德 - 瓦尔人异质结构的激子 - 波利顿共振。我们在这里表明，在局部更改WSE2/HBN/WSE2 VAN-WAALS异质结构中的层数嵌入了整体上，高质量的因子腔中，从而导致耦合强度的局部变化。这种效果产生了极化的楼梯箱电位，我们在室温下证明了这一点。我们的结果铺平了在纯粹修改其实际零件的贡献，从而通过连贯的光 - 耦合强度g纯粹修改其实际零件的贡献，从而铺平了在局部偏振电位上的工程范围。
The large oscillator strength of excitons in transition metal dichalcogenide layers facilitates the formation of exciton-polariton resonances for monolayers and van-der-Waals heterostructures embedded in optical microcavities. Here, we show, that locally changing the number of layers in a WSe2/hBN/WSe2 van-der-Waals heterostructure embedded in a monolithic, high-quality-factor cavity gives rise to a local variation of the coupling strength. This effect yields a polaritonic stair case potential, which we demonstrate at room temperature. Our result paves the way towards engineering local polaritonic potentials at length scales down to atomically sharp interfaces, based on purely modifying its real part contribution via the coherent light-matter coupling strength g.
