Zhanchun Zuo

Jan 4, 2024 | nature.com | Zhanchun Zuo |Kuijuan Jin |Qihuang Gong

AbstractNon-orthogonal eigenstates are a fundamental feature of non-Hermitian systems and are accompanied by the emergence of nontrivial features. However, the platforms to explore non-Hermitian mode couplings mainly measure near-field effects, and the far-field behaviours remain mostly unexplored. Here, we study how a microcavity with non-Hermitian mode coupling exhibits eigenstate non-orthogonality by investigating the spatial field and the far-field polarization of cavity modes.

Jul 17, 2023 | nature.com | Longlong Yang |Can Wang |Yuan Huang |Kuijuan Jin |Qihuang Gong |Zhanchun Zuo

AbstractSingle photon emission of quantum emitters (QEs) carrying internal degrees of freedom such as spin and angular momentum plays an important role in quantum optics. Recently, QEs in two-dimensional semiconductors have attracted great interest as promising quantum light sources. However, whether those QEs are characterized by the same valley physics as delocalized valley excitons is still under debate. Moreover, the potential applications of such QEs still need to be explored.