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Evanescent-Depth-Engineered High-Q topological Cavities for Strong Photon-Exciton Coupling
Zihan Mo, Renxuan Peng, Haoyang Zhang +2
Due to the inherent scattering in topological edge states, the topological resonant cavity (TRC) formed by their interference exhibits a relatively low quality factor (Q). To addre…
Square-Root Higher-Order Exceptional Points with Symmetry-Induced Multiple Spectral Responses
Haoyang Zhang, Yadi Niu, Nuo Wang +2
We generalize square-root procedure to non-Hermitian systems with finite lattices, providing a spectral operation scheme applicable to arbitrary tight-binding models. Via this gene…
Efficient Waveform Capture without Absorption with Synthesis of Complex Frequencies
Zhaohua Tian, Yu Tian, Yadi Niu +4
A optical waveform can be synthesized by complex-frequency waves as well as by real-frequency harmonic waves. While single complex-frequency wave with exponentially rising waveform…
Cascade enhancement and efficient collection of single photon emission under topological protection
Yali Jia, Zhaohua Tian, Qi Liu +3
High emission rate, high collection efficiency, and immunity to the defects are the requirements of implementing on-chip single photon sources. Here, we theoretically demonstrate t…
Topological-Vacuum-Induced Strong Photon-Exciton Coupling
Yali Jia, Zihan Mo, Qi Liu +4
The electromagnetic vacuum construction based on micro-nano photonic structures is able to engineer the photon-exciton interaction at the single quantum level. Here, through engine…